Lion Sash is a rare Artifact Creature — Equipment Cat card from The List (PLST), collector number NEO-26. Current market price: $3.86, 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.)