Explor the Demon Castle

{2}: This card gains a level-up counter
Level 1: Humans gain +1/+0 and first strike.
Non-Humans gain Wither
Level 2: Humans gain +2/+1 and
First strike. Non-Humans gain +1/+2 and Wither.
Level 3: Exile all non-legendary creature
and Enchantments.