Reptile, Serpent-Striker

Ninjitsu {2}{g} ({2}{g}, Return an unblocked attacker
you control to hand: Put this card onto the battlefield
from your hand or the command zone tapped and
attacking.)
Infect, first strike
Acid Spit — Reptile, Serpent-Striker gets +1/+0
for each poison counter all players have. If its
power is six or greater, it has trample.