Abloboat, Thallid Overlord

Saprolings you control gain all abilities of
creature cards in your graveyard
Whenever you sacrifice a creature, create 1/1
green Saproling tokens equal to its power, if that creature was a Saproling, instead put a +1/+1
counter on Abloboat
At the beginning of your upkeep, sacrifice a
creature or put a -1/-1 counter on Abloboat