The Spear of Leonidas is a rare Legendary Artifact — Equipment card from Assassin's Creed (ACR), collector number 38. Current market price: $2.51 (foil $1.54), TCGplayer market prices via Scryfall.
Whenever equipped creature attacks, choose one — • Bull Rush — It gains double strike until end of turn. • Summon — Create Phobos, a legendary 3/2 red Horse creature token. • Revelation — Discard two cards, then draw two cards. Equip {2}