# Battles
Battles are at the core of Heroes of Aviel. Take your units in to a turn-based tactical battle against monsters or other players, use your skill and knowledge to win the day. You cannot conquer land nor complete quests without battle!
Combat takes place on an isometric square grid between two opposing armies. These armies are made up of various units and led by a Hero or General. Units have combat stats and special abilities which can be used to defeat the enemy army.
Combat is turn-based with each unit in an army acting one after the other, this set of actions makes up the armies turn. Because all actions from an individual army come together, surprise and momentum can make for a key advantage. Each turn each unit can move, attack, and use an ability. Attacks and abilities may damage and incapacitate enemy units and when all of the units from an army are incapacitated that army loses the battle.
## Exhaust not Exterminate
Although the 4th X in ‘4X’ usually stands for Exterminate, units in Heroes of Aviel cannot be destroyed. The gods of Aviel are more than fond of warriors and battle, and any unit incapacitated in battle will revive in at a nearby temple or altar. After units are revived they will be in an *exhausted* state and unable to move or take place in battle for a number of hours.
This allows for meaningful combat where the outcome matters without putting players valuable NFTs at risk.
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