Ebon Praetor [Fallen Empires]

Set: Fallen Empires Type: Creature — Avatar Praetor Rarity: Rare Cost: {4}{B}{B} First strike, trampleAt the beginning of your upkeep, put a -2/-2 counter on Ebon Praetor.Sacrifice a creature: Remove a -2/-2 counter from Ebon Praetor. If the sacrificed creature was a Thrull, put a +1/+0 counter on Ebon Praetor. Activate this ability only during your upkeep and only once each turn.