Recycling Matrice

Whenever a non-token creature you control dies,
put a 0/1 colorless Slime creature token with
"This creature can't attack or block" onto the battlefield.
Sacrifice three creatures : Put a 3/3 black Insect Warrior creature-artifact token onto the
battlefield.
Cannibalism is norm in a society where not a thing is
wasted. Each death is simply ressource relocation.