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.

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 Name	Synergy Explanation	Synergistic Heroes
Aidan	Benefits when team dies. Works well with weaker heroes, heroes who give bonuses when they die, and heroes who can die twice
Blood Blade	Deals bonus damage to bleeding heroes. Works well with bleed heroes
Das Moge	Gains energy when heroes use skills. Benefits from heroes that gain energy faster than normal, and fast heroes with an energy artifact.
Dragon Slayer	Heals when an ally criticals. Works well with any hero who can hit critical hits (all of them) or boost critical chance
Faith Blade	Benefits from enemy heroes dying, so any hero with a lot of damage synergizes
Field	Deals bonus damage to stunned heroes. Works well with stunning heroes
Flame Strike	Benefits 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.
Heart Watcher	Heals when hits a critical hit. Works well with heroes who increase critical chance
Iceblink	Deals bonus damage to frozen heroes. Works well with freezing heroes
Kamath	Deals bonus damage to petrified heroes. Works well with petrifying heroes
King Barton	Deals bonus damage to stunned heroes. Works well with stunning heroes
Malassa	Deals bonus damage to poisoned heroes. Works well with poison heroes
Margaret	Stuns poisoned heroes. Works well with poison heroes
Mihm	Benefits 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.
Miki	Heals when blocks. Works well with heroes who boost block or reduce enemy precision
Sigmund	Deals bonus damage to burning heroes. Works well with burning heroes
Valentino	Gives a bonus attack when heroes use skills. Benefits from heroes that gain energy faster than normal
Walter	Deals bonus damage to poisoned heroes. Works well with poison heroes
Xia	Self buffs when blocks. Works well with heroes who boost block or reduce enemy precision

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.

Slot Definitions

Slot	Slot Explanation	Example Heroes
1	Slot 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)
2	Slot 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.
3	Slot 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.
4-5	Slots 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.
6	Due 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.

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 Type	Number in a Team	Explanation	Example Heroes
CC	2-4	Crowd 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.
DPS	2-4	Damage 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.
Healer	0-2	Healers 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.
Support	0-1	Support heroes don’t always heal, but they still buff your allies or debuff your enemies.
Tank	1	Tanks stay alive and protect your heroes. See the slot 1 explanation.

Auras

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.

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  Corpsedemon,  Groo,  Honor Guard,  Michelle, and  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  Belrain,  Kroos, and  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  Dark Arthinodal and  Iceblink, heroes that heal themselves like  Dragon Slayer and  Valkyrie, and heroes that have built in damage reduction and can deal damage like  Asmodel and  Skerei work wonders.

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  Kamaths to target the backline.

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  Aidan,  Flame Strike,  Mihm, and  Skerei are strong contenders that can do this.

Filler heroes should give some sort of bonus for taking damage or dying. Heroes like  Destroyer,  Emily,  Kroos, and  Rosa are great for this.

If your carry hero benefits from death by itself, using heroes like  Michelle and  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.

Other Generic Synergies

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

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.

Pet	Pet Explanation	Example Heroes
Deer	Deer 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.
Dragon	Dragon 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.
Fox	Fox 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.
Golem	Golem 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.
Griffon	Griffon is a pure offense pet. Use it with heroes that benefit from extra attack and holy damage. Typically, these are damage over time heroes.
Snake	Snake 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.
Snow	Snow is only useful for the Freeze synergy.
Wolf	Wolf 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.

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.

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.