Venom, Non-Parasite

Whenever this creature transforms into Venom,
Non-Parasite, destroy target creature and you gain
3 life.
Whenever a creature dies, put a +1/+1 counter
on Venom, Non-Parasite, and each opponent
loses one life.
At the beginning of each end step, if three or
more of your opponents creatures died this turn,
transform Venom, Non-Parasite.
Outstanding! Now, let's bite off all the heads off and
pile them up in the corner.