Luxior, Giada's Gift is a mythic Legendary Artifact — Equipment card from Streets of New Capenna (SNC), collector number 240. Current market price: $4.51 (foil $5.57), TCGplayer market prices via Scryfall.
Equipped creature gets +1/+1 for each counter on it. Equipped permanent isn't a planeswalker and is a creature in addition to its other types. (Loyalty abilities can still be activated.) Equip planeswalker {1} Equip {3}