Phyrexian Triniform is a mythic Artifact Creature — Phyrexian Golem card from March of the Machine Commander (MOC), collector number 370. Current market price: $2.13, TCGplayer market prices via Scryfall.
When this creature dies, create three 3/3 colorless Phyrexian Golem artifact creature tokens. Encore {12} ({12}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)