Triskelavus is a rare Artifact Creature — Construct card from Commander 2011 (CMD), collector number 263. Current market price: $0.40, TCGplayer market prices via Scryfall.
Flying This creature enters with three +1/+1 counters on it. {1}, Remove a +1/+1 counter from this creature: Create a 1/1 colorless Triskelavite artifact creature token with flying. It has "Sacrifice this token: This token deals 1 damage to any target."