Shadowspear is a rare Legendary Artifact — Equipment card from Theros Beyond Death (THB), collector number 345. Current market price: $44.86 (foil $88.42), TCGplayer market prices via Scryfall.
Equipped creature gets +1/+1 and has trample and lifelink. {1}: Permanents your opponents control lose hexproof and indestructible until end of turn. Equip {2}