Between stitchers, cultists, and scavengers, corpses are in high demand.

Moldgraf Millipede

When Moldgraf Millipede enters, mill three cards, then put a +1/+1 counter on Moldgraf Millipede for each creature card in your graveyard. (To mill three cards, put the top three cards of your library into your graveyard.)

Foundations Jumpstart

Duskmourn: House of Horror Commander

Jumpstart 2022

When Moldgraf Millipede enters the battlefield, mill three cards, then put a +1/+1 counter on Moldgraf Millipede for each creature card in your graveyard. (To mill a card, put the top card of your library into your graveyard.)

Innistrad: Double Feature

Innistrad: Crimson Vow

Moldgraf Millipede gets a +1/+1 counter for every creature card in your graveyard, including any creature cards that were already there before you milled three cards.