Chainbreaker Legionnaire

Card Effect
Once per turn, you can discasrd a card to play a unit from your deck with the same cost or lower and the same essence type(s). You can sacrifice this unit to play a different "Chainbreaker" unit from your deck with the same cost or lower, it cannot be sacrificed until the end of the turn.

Trivia

 * You can discard Akleesa's Devout to play Akleesa's Devout from the deck. This will allow you to sacrifice Legionnaire for a Chainbreaker Centurion, then play Legionaire back from the grave with Devout to use the effect again.
 * Because the effect declares you to play a unit with the same essence types, you will have to discard a Force/Order card to play a Force/Order unit, and cannot discard a Force/Order card for a Force or Order unit, and vice versa.