Compleated Huntmaster is a uncommon Creature — Phyrexian Elf Warrior card from March of the Machine (MOM), collector number 96. Current market price: $0.27 (foil $0.35), TCGplayer market prices via Scryfall.
{1}, {T}, Sacrifice another creature or artifact: Incubate 3. (Create an Incubator token with three +1/+1 counters on it and "{2}: Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)