Loopy Lobster is a rare Creature — Lobster card from Mystery Booster Playtest Cards 2019 (CMB1), collector number 26. Current market price: $0.81, TCGplayer market prices via Scryfall.
Four-faced (Whenever this becomes tapped, move it to the next stage, or to stage 1 if it's at stage 4.) Stage 1 — (1/4) Stage 2 — (4/1) Evolve Stage 3 — (2/4) {U}: Loopy Lobster gets +1/-1 until end of turn. Stage 4 — (4/4) Vigilance. {T}: Draw 2 cards.