Mercenary

Mercenaries cost mythium and are used to attack your opponent and to increase your Income. Mythium can be spent on mercenaries every wave or saved for multiple waves to unleash a larger attack.

Mercenaries attack your opponent whenever the next battle phase begins.

Mercenaries hired during the build phase will attack your opponent as soon as the battle phase begins.
Mercenaries hired during the battle phase will attack your opponent when the next wave's battle phase begins.

Each player attacks exactly one other player, depending on which lane you are in.

Strategy

Many mercenaries are referred to as power mercs, meaning they are stronger in some way, but give reduced income. These power mercs might provide auras, be strong tanks or deal high damage. Your team should only send power mercs if you think you can break your opponents on that wave.
Try to align your sends with your teammate(s) to increase your chances of dealing damage to the King.
When expecting a send from your opponents, it is often advisable to also send on the same wave. This gives you extra gold for building Fighters to hold. If you do not believe you can break your opponent on this wave, but will have trouble holding their send, send income, meaning non-power mercs, as well as upgrading your King.
As a rule of thumb, send mercenaries that have different Attack & Defense Types to those of the wave, as players typically build Fighters that will be strong against these.
A send should typically aim to counter the strongest unit of your opponent for the wave in question. Some examples:
- Four Eyes into a Fenix on 13
- Brutes into a Kingpin wave 10, slowing its attack speed
- Safety Mole and / or Hermit against AOE units, such as Honeyflower
- Mass Snails into Daphne or Radiant Halo / Arc Of Justice on 13, preventing them from ramping up
The vertical spawn position of mercenaries depends on the type of mercenary sent.
- Tanks spawn in front of the wave, which includes Snail, Dragon Turtle, Fiend, Dino, Ghost Knight, Siege Ram and Kraken
- Melees spawn inside of the wave, which includes Brute, Imp, Safety Mole, Pack Leader, Mimic, Ogre and Centaur
- Ranged spawn behind the wave, which includes Robo, Lizard, Hermit, Cannoneer, Drake, Witch, Four Eyes, Shaman and Needler
The horizontal spawn position of mercenaries depends on the mythium cost and if the amount of mercenaries sent of the same type(Tank, Melee, Ranged) is odd or even.
- If the amount is odd then the cheapest merc will spawn on the far right in this pattern(1 being the cheapest): 2 3 1, 2 4 5 3 1, 2 4 6 7 5 3 1 etc.
- If the amount is even then the cheapest merc will spawn on the far left in this pattern(1 being the cheapest): 1 2, 1 3 4 2, 1 3 5 6 4 2 etc.
  - Pack Leader and Mimic is the only special case where it is 2 unique mercs of the same type and cost, in this case the Pack Leader will be sorted after the Mimic.