Jaster, the Demon Born

+1: Until end of turn, Jaster, the Demon Born, becomes a legendary 5/5 red and black Demon creature with trample, indestructible, and haste.
-2: Create 2 2/2 red Devil creature tokens with "When this creature is destroyed deal 1 damage to target permanent.
-6: You get an emblem with "All creatures you control gain Haste and "When this creature is destroyed, deal 2 damage to target opponent."