Pentavus is a rare Artifact Creature — Construct card from Duel Decks: Elspeth vs. Tezzeret (DDF), collector number 58. Current market price: $0.16, TCGplayer market prices via Scryfall.
This creature enters with five +1/+1 counters on it. {1}, Remove a +1/+1 counter from this creature: Create a 1/1 colorless Pentavite artifact creature token with flying. {1}, Sacrifice a Pentavite: Put a +1/+1 counter on this creature.