Plankton, Lord of Chum

Intimidate
Whenever Plankton deals or takes combat
damage, create that many 1/1 Black-Green
plankton tokens.
Whenever Plankton or a plankton token causes a creature to die, create a colorless Chum token
with, "{t}, Sacrifice this token; add one mana of
any color."
Plankton's power is equal to the number of
planktons you control.