Patchwork Gnomes is a common Artifact Creature — Gnome card from Ultimate Masters (UMA), collector number 231. Current market price: $0.11 (foil $0.24), TCGplayer market prices via Scryfall.
Discard a card: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)