Albon Roa of the Order

Infiltrate - The special ability of a unit with Infiltrate occurs the first time that unit hits the enemy player. It doesn't work while the unit is on defense, such as when it is attacked by a Relic Weapon.

Killer - A unit with Killer can make one special attack directly against an enemy unit. This can be done the turn it's played, and can target any unit, regardless of Flying, Aegis, or other special abilities.

Onslaught - Does something when played if you or any of your units have attacked this turn. This includes standard attacks as well as Killer and Relic Weapon attacks.