Mantis Engine is a uncommon Artifact Creature — Insect card from Urza's Destiny (UDS), collector number 133. Current market price: $0.20 (foil $3.27), TCGplayer market prices via Scryfall.
{2}: This creature gains flying until end of turn. (It can't be blocked except by creatures with flying or reach.) {2}: This creature gains first strike until end of turn. (It deals combat damage before creatures without first strike.)