Greatsword of Tyr is a common Artifact — Equipment card from Commander Legends: Battle for Baldur's Gate (CLB), collector number 22. Current market price: $0.35 (foil $0.38), TCGplayer market prices via Scryfall.
Whenever equipped creature attacks, put a +1/+1 counter on it and tap up to one target creature defending player controls. Equip {W} ({W}: Attach to target creature you control. Equip only as a sorcery.)
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