Leena, Reptile Queen

+1: Put 2 1/1 snake tokens with deathtouch onto the battlefield
-2: Sacrifice 6 Snake tokens. Put 2 4/4 Snake Guardian tokens with deathtouch and first strike onto the battlefield
-10: Sacrifice Leena, Reptile Queen. Put 5 5/5 Snake Commander tokens with deathtouch, first strike, and command onto the battlefield