atomic fission

+1: create one atom token its a 4/4 with "this card cannot attack or block"
+2: sacrifice an 4/4 atom token and create two 2/2 atom tokens with "this card cannot block"
-3: sacrifice two 2/2 atom token create two 1/1 atom tokens with "when this creature dies and you have no atom tokens on the field you win the game"