Idle Heroes Synergy Guide [Completed]

Hi everyone, lemmingllama here.

Idle Heroes is a game about luck and about understanding how to work with what you get to defeat your opponents. Sometimes we won’t get all the top tier heroes, or players will still get all the top tier heroes and still lose because someone else had a team they couldn’t handle.

This is what this guide is about, making the best use of what you have to win battles. Finding the ways to combine the heroes you are given and creating the most effective composition is essential if you want to be successful.

Disclaimers

Disclaimers

To start, some quick disclaimers.

First off, top tier heroes are top tier for a reason. This synergies guide will be explaining the powers of all heroes, even if they aren’t very strong by themselves. However, a good synergistic team of top tier heroes will beat a team of synergistic low tier heroes, and a team with higher level heroes will beat teams of lower level heroes even if they don’t have synergy. Think of synergy as a way to maximize what you have, not as a complete replacement of what is considered meta.

Secondly, this guide is my own personal thoughts and is based on the last patch I updated it for. If you think that something was missed, needs further explanation, is incorrect, or is out of date, just leave a comment and let me know. I’m happy to talk here or also on Discord (lemmingllama#9071)

Thirdly, I’m going to be focusing mostly on natural five star heroes. Four star heroes can be relevant, but typically they aren’t particularly necessary except in very specific situations (Aleria on marauders) or in cheese compositions (Destroyer dying to boost attack).

Finally, this is based on a composition guide that was originally created by /u/AntVisor and was requested to be updated or rewritten by /u/IHuser. I would highly recommend reading this because the majority of the guide is still relevant even though the information is many patches out of date.

Idle Heroes Synergy Guide

Hero Synergies

To start off, I want to touch on the individual hero synergies.

Some heroes are fine on their own, and some benefit from being with other heroes to maximize their potential.

Adding in some of these synergies can boost the effectiveness of weaker heroes to be more viable (Corpsedemon + Iceblink combo) or strengthen already strong heroes (Faith Blade one-shotting people to trigger Mihm’s damage over time).

Heroes don’t need to be with their synergistic heroes to be effective, but using these combinations can maximize their effectiveness.

Example Synergies

Hero NameSynergy ExplanationSynergistic Heroes
idle heroes aidan AidanBenefits when team dies. Works well with weaker heroes, heroes who give bonuses when they die, and heroes who can die twiceidle heroes Michelle idle heroes sleepless idle heroes Destroyer 6 Stars idle heroes emily
idle heroes blood blade Blood BladeDeals bonus damage to bleeding heroes. Works well with bleed heroesidle heroes blood blade idle heroes das-moge idle heroes mirage idle heroes Queen idle heroes xia
idle heroes das-moge Das MogeGains energy when heroes use skills. Benefits from heroes that gain energy faster than normal, and fast heroes with an energy artifact.idle heroes amuvor idle heroes dark-arthindol idle heroes das-moge idle heroes Faith Blade idle heroes iceblink idle heroes kroos
idle heroes dragon-slayer Dragon SlayerHeals when an ally criticals. Works well with any hero who can hit critical hits (all of them) or boost critical chanceidle heroes Michelle
idle heroes Faith Blade Faith BladeBenefits from enemy heroes dying, so any hero with a lot of damage synergizesidle heroes Faith Blade
idle heroes Field FieldDeals bonus damage to stunned heroes. Works well with stunning heroesidle heroes bleecker idle heroes Faith Blade idle heroes Field idle heroes gusta idle heroes honor-guard idle heroes king-barton idle heroes kroos idle heroes Margaret idle heroes Michelle idle heroes od-01 idle heroes starlight idle heroes valentino idle heroes walter
idle heroes flame-strike Flame StrikeBenefits when team dies. Works well with weaker heroes, heroes who give bonuses when they die, and heroes who can die twice. In addition, Flame Strike benefits from enemy heroes dying, so any hero with a lot of damage synergizes.idle heroes Michelle idle heroes sleepless idle heroes Destroyer 6 Stars idle heroes emily
idle heroes heart-watcher Heart WatcherHeals when hits a critical hit. Works well with heroes who increase critical chanceidle heroes Michelle
idle heroes iceblink IceblinkDeals bonus damage to frozen heroes. Works well with freezing heroesidle heroes corpsedemon idle heroes dominator idle heroes iceblink idle heroes jahra
idle heroes kamath KamathDeals bonus damage to petrified heroes. Works well with petrifying heroesidle heroes dark-arthindol idle heroes kamath idle heroes kharma idle heroes jahra idle heroes sleepless
idle heroes king-barton King BartonDeals bonus damage to stunned heroes. Works well with stunning heroesidle heroes bleecker idle heroes Faith Blade idle heroes Field idle heroes gusta idle heroes honor-guard idle heroes king-barton idle heroes kroos idle heroes Margaret idle heroes Michelle idle heroes od-01 idle heroes starlight idle heroes valentino idle heroes walter
idle heroes Malasa MalassaDeals bonus damage to poisoned heroes. Works well with poison heroesidle heroes demon-hunter idle heroes faceless idle heroes Field idle heroes jahra idle heroes Malasa idle heroes Margaret idle heroes walter
idle heroes Margaret MargaretStuns poisoned heroes. Works well with poison heroesidle heroes demon-hunter idle heroes faceless idle heroes Field idle heroes jahra idle heroes Malasa idle heroes Margaret idle heroes walter
idle heroes mihm MihmBenefits when team dies. Works well with weaker heroes, heroes who give bonuses when they die, and heroes who can die twice. In addition, Mihm benefits from enemy heroes dying, so any hero with a lot of damage synergizes.idle heroes Michelle idle heroes sleepless idle heroes Destroyer 6 Stars idle heroes emily
idle heroes miki MikiHeals when blocks. Works well with heroes who boost block or reduce enemy precisionidle heroes emily
idle heroes sigmund SigmundDeals bonus damage to burning heroes. Works well with burning heroesidle heroes dragon-slayer idle heroes fat-mu idle heroes flame-strike idle heroes sigmund idle heroes valkyrie
idle heroes valentino ValentinoGives a bonus attack when heroes use skills. Benefits from heroes that gain energy faster than normalidle heroes amuvor idle heroes dark-arthindol idle heroes das-moge idle heroes Faith Blade idle heroes iceblink idle heroes kroos
idle heroes walter WalterDeals bonus damage to poisoned heroes. Works well with poison heroesidle heroes demon-hunter idle heroes faceless idle heroes Field idle heroes jahra idle heroes Malasa idle heroes Margaret idle heroes walter
idle heroes xia XiaSelf buffs when blocks. Works well with heroes who boost block or reduce enemy precisionidle heroes emily

idle heroes hero synergies

Team Synergies

In addition to having specific hero synergies, we can also build teams around a specific theme.

Many of these are partly based on the hero synergies, but it also includes hero types and roles that work well together.

To start off with, let’s define the standard slots that a team will be comprised of.

When reading the slot positions, slot 1 is the slot at the bottom of your screen and closest to the enemy team. Slot 2 is the slot above it, and slots 3-6 are the backline from bottom to top. It’s the same order as if you were creating your team from left to right before a battle.

idle heroes team composition

Slot Definitions


SlotSlot ExplanationExample Heroes
1Slot 1 is your tank slot. This is the hero that has the most health or damage reduction or self sustain, and will be soaking up the majority of the enemies basic attacks. Slot 1 will also be the slot that gets off the most active skills, because their energy bar will be filled quickly from all the basic attacks. Heroes that go well in this slot will have a lot of basic health, armor, and damage reduction, or benefit from being hit (self buff, self heal, counterattacks, enemy debuff)idle heroes corpsedemon idle heroes groo idle heroes norma idle heroes xia idle heroes skerei
2Slot 2 is your safe slot. This is where you want to put your lowest health hero, or the hero who you want to be CC’ed the least. Typically people will put their strongest damage or CC hero in slot 2. Heroes that also take a long time to ramp up their damage can be well placed here. If the hero has some built in sustain options or CC immunity, it can be preferable to place them in another slot.idle heroes aidan idle heroes barea idle heroes das-moge idle heroes flame-strike idle heroes vesa
3Slot 3 is your off-tank slot. This is the slot that you want to survive for as long as possible if your backline is otherwise being wiped, because then enemy backline attacks will continue to hit your off-tank rather than your protected slot 2 hero. Typically heroes with some form of protection that also bring utility or damage are the best in this slot.idle heroes emily idle heroes kamath idle heroes Michelle idle heroes rosa
4-5Slots 4-5 are your less protected safe slots. CC and damage dealing heroes should go here, but the ones that are more likely to survive or less important than your slot 2.idle heroes blood blade idle heroes dark-arthindol idle heroes demon-hunter idle heroes valentino idle heroes karim
6Due to a bug with Valentino’s RNG, slot 6 tends to get hit by more CC on average than other slots. As such, slot 6 is like slots 4-5, but you want a hero with some form of CC immunity to negate more CC than they otherwise would in other slots.idle heroes Faith Blade idle heroes Michelle idle heroes mihm idle heroes valentino

General Composition


Other than your slots, you also want to understand what a basic team needs.

Typically a team will want to follow these guidelines unless you are running some sort of synergy or cheese strategy that requires you to deviate.

When looking at these numbers, remember that one hero can serve two or more roles. This is what makes heroes like Michelle so strong, they can fit into multiple roles and thus are very flexible when building your team.

Hero TypeNumber in a TeamExplanationExample Heroes
CC2-4Crowd control abilities are fantastic for stopping your enemy from performing their game plan. It can be good to have different types of crowd control so that after one times out, another can still be applied. Unless you are trying to benefit from a particular synergy like Iceblink’s freeze damage, it can be good to have a balance of freeze, petrify, silence, and stun.idle heroes dark-arthindol idle heroes demon-hunter idle heroes kamath idle heroes Michelle idle heroes valentino
DPS2-4Damage dealing heroes are essential to defeat the enemy team. Typically, it’s good to have at least one area of effect DPS and one burst damage DPS. This way you can both handle large teams to reduce their health, and kill tanks that just don’t want to die.idle heroes aidan idle heroes amuvor idle heroes Faith Blade idle heroes skerei
Healer0-2Healers are units that heal your other heroes, giving them additional hit points to survive and keep on doing what they are doing. Healers are slightly less relevant when you can get your heroes to E3 or if you use Deer as your pet.idle heroes ormus idle heroes vesa idle heroes belrain idle heroes Michelle
Support0-1Support heroes don’t always heal, but they still buff your allies or debuff your enemies.idle heroes emily idle heroes heart-watcher idle heroes kroos idle heroes Queen idle heroes rosa
Tank1Tanks stay alive and protect your heroes. See the slot 1 explanation.idle heroes corpsedemon idle heroes groo idle heroes norma idle heroes xia idle heroes skerei

Auras


shadow auraabyssaurafortressauraforest auraevil auralight auradark aurajustice auragood evil auraruin auraredemption aurarainbow aura

Auras boost up your heroes. If you can, aim for an aura.

However, you can choose to go with no aura if it means you can use stronger heroes or more synergistic heroes.

Do what benefits your team the most.

skerei team

Synergistic Teams

Now, back to our main programming for today! All example teams provided are solely for demonstration of a concept; they may not be fully meta.

Round 15 Teams


Round 15 teams are defensive teams that have a single goal: don’t die.

You want your heroes to be as tanky as possible, and to have 1-2 heroes who can heal up your team. You want to simply take all the CC the enemy team gives out, live through it, then slowly grind their team into dust.

Typically you want one strong tank in slot 1 that simply will never die. Heroes like idle heroes corpsedemon Corpsedemon, idle heroes groo Groo, idle heroes honor-guard Honor Guard, idle heroes Michelle Michelle, and idle heroes sleepless Sleepless are fantastic for this role.

Next, you want 1-2 healers in slots 2 and slot 4-5 if you have multiples. Heroes like idle heroes belrain Belrain, idle heroes kroos Kroos, and idle heroes vesa Vesa who can heal and give benefits even if they are CCed or killed are ideal for this kind of composition.

Finally, you want to flesh out your other slots with off-tanks that can survive and have some damage/CC capabilities. Heroes that weaken the enemy like idle heroes dark-arthindol Dark Arthinodal and idle heroes iceblink Iceblink, heroes that heal themselves like idle heroes dragon-slayer Dragon Slayer and idle heroes valkyrie Valkyrie, and heroes that have built in damage reduction and can deal damage like idle heroes asmodel Asmodel and idle heroes skerei Skerei work wonders.

Example Team

idle heroes corpsedemon idle heroes ormus idle heroes dominator idle heroes iceblink idle heroes kamath idle heroes sigmund

This Old Enemy team has the freeze synergy with Corpsedemon, Dominator, Iceblink, added CC with the introduction of Kamath, healing with Ormus, and tanky damage with Sigmund.

While this team might not win many offensive matches, defensively it will sustain through a lot and come out relatively unscathed.

To make it a bit more offensive, we could shift to a Rainbow team:

 idle heroes corpsedemon idle heroes belrain idle heroes iceblink idle heroes dark-arthindol idle heroes barea idle heroes valkyrie

This has the healing from Belrain, the freeze synergy, DA’s extra CC, and damage coming from Barea and Valkyrie.

Assassin Teams


Assassin teams are based on using a bunch of heroes who target the weakest hero and systematically wipe them out.

These are pure damage compositions that are designed to cripple an enemy team before they can beat your assassins.

This concept can be extended out to using heroes who target specific slots as well, such as using multiple idle heroes kamath Kamaths to target the backline.

Example Team

idle heroes lutz idle heroes faceless idle heroes mihm idle heroes karim idle heroes mirage idle heroes Faith Blade

This Rainbow team has five heroes that target the weakest hero, and killing a hero will trigger Faith Blade’s and Mihm’s passive bonuses to kill them even more. Meanwhile, we can rely on Lutz’s passive to heal him and keep him alive long enough to wipe out the enemy team. Even if some of our assassins die, it simply helps feed Mihm’s damage so our remaining assassins can clean up.

Death Cheese Teams


Cheese teams are designed to have the majority of your team die, and then have one extremely strong hero who can wipe out the entire opposing team.

You want your carry hero to be a high level, and your weak heroes to be a low level so they can quickly die.

Carry heroes should benefit from heroes dying, or otherwise be able to sustain themselves and deal enough area of effect damage to wipe the enemy team. Heroes like idle heroes aidan Aidan, idle heroes flame-strike Flame Strike, idle heroes mihm Mihm, and idle heroes skerei Skerei are strong contenders that can do this.

Filler heroes should give some sort of bonus for taking damage or dying. Heroes like idle heroes destroyer 6 stars Destroyer, idle heroes emily Emily, idle heroes kroos Kroos, and idle heroes rosa Rosa are great for this.

If your carry hero benefits from death by itself, using heroes like idle heroes Michelle Michelle and idle heroes sleepless Sleepless can also give additional death triggers. Typically, you want these heroes to be six star or nine star so they get the full benefits of their passives. However, leave them at level 100 so they will die sooner. You can also unequip these heroes so they die sooner.

Example Team

idle heroes kroos idle heroes destroyer 6 stars idle heroes destroyer 6 stars idle heroes emily idle heroes emily idle heroes flame-strike

This Bound Soul team will boost Flame Strike’s attack by a lot when they die, and Kroos will provide a quick stun to allow Flame Strike to use her active skill.

Other Generic Synergies


I’m mostly keeping this in because these are the catch-alls for generic strategy.

  • Healers + People who have health = living allies
  • Heroes who target specific slots + more heroes who target those slots = dead enemies
  • Debuff heroes + heroes who hit debuffed targets = dead enemies
  • Buff heroes + heroes who aren’t dead = living allies
  • Lots of CC + Lots of CC = enemies who rage at being unable to do anything

idle heroes pets monsters

Pets/Monsters

Pets boost your heroes and have great active effects. Choose a pet type that benefits your main strategy.

There are already some great pet guides out there, so I’ll be focusing mainly on the synergy aspects of things.

PetPet ExplanationExample Heroes
DeerDeer works best with high health heroes and heroes who benefit from the increased Armor and Block. Additionally, heroes who have built in damage reduction will benefit more from healing.idle heroes asmodel idle heroes corpsedemon idle heroes groo idle heroes skerei idle heroes xia
DragonDragon works best with heroes who benefit from criticals or rely on critical hits to deal damage. Also, use Dragon if you are running some Stun synergy heroes.idle heroes dragon-slayer idle heroes Faith Blade idle heroes Field idle heroes heart-watcher idle heroes king-barton
FoxFox works best with CC heroes who can use the energy boost to continue chain CCing the enemy team, and heroes who can gain energy faster than normal and will benefit from the additional active skills.idle heroes amuvor idle heroes dark-arthindol idle heroes das-moge idle heroes Faith Blade idle heroes valentino
GolemGolem works best with heroes who benefit from armor and heroes with a high base critical chance. Also, use Golem if you are running some Petrify synergy heroes.idle heroes kamath idle heroes sigmund idle heroes xia
GriffonGriffon is a pure offense pet. Use it with heroes that benefit from extra attack and holy damage. Typically, these are damage over time heroes.idle heroes mihm idle heroes mirage idle heroes Queen
SnakeSnake is an offensive and defensive pet. Use it with heroes that benefit from extra Block. Also, use Snake if you are running some Poison synergy heroes.idle heroes Malasa idle heroes miki idle heroes xia
SnowSnow is only useful for the Freeze synergy.idle heroes corpsedemon idle heroes jahra idle heroes iceblink
WolfWolf is a pure offense pet. Use it with heroes that benefit from extra attack and armor break. Typically, these are damage over time heroes. Also, use Wolf if you are running some Bleed synergy heroes.idle heroes blood blade idle heroes mihm idle heroes Queen

Meta Composition Analysis

Now, let’s look at a meta team based around some top tier heroes. This won’t necessarily be as cool and synergistic as some of the other compositions I’ve mentioned, but it has its own synergy. The majority of it is about filling in all the team roles, keeping a balance of CC, damage, and survivability.

idle heroes skerei idle heroes valentino idle heroes Michelle idle heroes valkyrie idle heroes kamath idle heroes mihm

This team has most of our roles filled out nicely. Every hero has a large base health pool or some form of damage reduction to sustain through CC and damage, and our backline has lots of CC immunity and on hit abilities.

We have CC from Valentino, Michelle, Mihm, and Kamath to protect our team. Skerei will run Fearless Armor to be extremely tanky and apply on hit effects to the entire front line.

Also, being in slot 1 means Skerei will get a lot of energy to deal damage.

Mihm and Valkyrie will work on reducing health bars enough to allow Skerei to wipe them all, and Valentino’s passive will contribute to the damage. Finally, Michelle’s healing will keep everyone topped up and ready for action.

Each hero is strong and fits multiple roles, and when joined together they can be even stronger than each hero individually.

Heroes like Skerei need to be CCed to be dealt with, but most of our team has some form of CC immunity to make CC less relevant.

Overall, each part of the team can do it’s part to helping you win the fight.

Guide shared by lemmingllama.

Idle Heroes Synergy Guide [Completed]
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