The Gravemind

when The Gravemind enters the field place 3 pod infectors, these are 2/1 artifact creatures, if opponent creature is killed by Pod Infector make a copy of creature with two -1/-1 counters

use {2} biomass counters and {t}, create a 3/1 Pod Infector artifact creature

on hit create one biomass counter on The Gravemind
when infected dies create one biomass counter on The Gravemind

"I am a monument to all your sins"