Staff of Compleation is a mythic Artifact card from Phyrexia: All Will Be One Promos (PONE), collector number 242p. Current market price: $4.56 (foil $6.59), TCGplayer market prices via Scryfall.
{T}, Pay 1 life: Destroy target permanent you own. {T}, Pay 2 life: Add one mana of any color. {T}, Pay 3 life: Proliferate. {T}, Pay 4 life: Draw a card. {5}: Untap this artifact.