Lion Sash is a rare Artifact Creature — Equipment Cat card from Kamigawa: Neon Dynasty Promos (PNEO), collector number 26p. Current market price: $3.28 (foil $3.72), TCGplayer market prices via Scryfall.
{W}: Exile target card from a graveyard. If it was a permanent card, put a +1/+1 counter on this permanent. Equipped creature gets +1/+1 for each +1/+1 counter on this Equipment. Reconfigure {2} ({2}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)