Oviya, Automech Artisan is a rare Legendary Creature — Human Artificer card from Aetherdrift (DFT), collector number 173. Current market price: $1.13 (foil $1.17), TCGplayer market prices via Scryfall.
Each creature that's attacking one of your opponents has trample. {G}, {T}: You may put a creature or Vehicle card from your hand onto the battlefield. If you put an artifact onto the battlefield this way, put two +1/+1 counters on it.