Index -> Playing the Game -> Types of Cards -> Unit

Units are denizens of the galaxy that have been inspired or coerced to support you against the enemy. They have the same attributes as your avatar (attack, damage bonus, and defense) and they have health, though they are more easily destroyed.

When your units are at a quest that your opponent is attempting, he'll have to fight his way through them to apply an ability there.

When you play a unit, you'll have to select one of the two quests on the playmat.

If you want to raid your opponent's avatar, play your unit to a quest where your opponent has no units.

If your opponent has units at a quest, you can play units there and raid to clear them out.