Eren, The Coordinate

+1: Deafening Scream- Erens piercing scream roars across the battlefield. Opponent creatures get -1-1 and your creatures get +1+1 till end of turn.
-X: Tatakae-Eren becomes a X/X Titan creature with haste and double strike, where X is the amount of removed counters.
-10: The Rumbling-Eren creates 10, 10/10 colossal titan tokens with menace, trample, and haste. Sacrifice the tokens next upkeep.