Yal-Kalil, Brood Master

+1: Create two 1/1 black Hive Spawn creature tokens.
-3: Sacrifice all Hive Spawn tokens you control, create that many 2/2 black Hive Warrior creature tokens.
-X: Until end of turn, Hive creature tokens you control get +X/+0 and trample and your choice of lifelink or vigilance