Infest

Put a parasite counter on target {x} creatures.
{3}{b}{g}{t}: Put a parasite counter on target
creature.
Creatures with parasite counters get 3 -1/-1
counters and "When this creature dies, create a
5/5 grub swarm with deathtouch, infect and
"When this creature deals combat damage to a creature, put a parasite counter on it. " "
--The rot grubs keep on coming back destroying beast
after beast.