Stoned Vampire of the Tub

Vamps gonna vamp — Each player sacrafices a creature at each upkeep. You create a 0/1 green
herb creature token with hast and {t}: Add a {g}.

Bat herbs — At the begining of combat, forests
you control are 1/1 black bat tokens with lifelink
and vigilance. They become forests at the end of combat.