Sea-Dasher Octopus is a rare Creature — Octopus card from Ikoria: Lair of Behemoths Promos (PIKO), collector number 66p. Current market price: $1.06 (foil $0.96), TCGplayer market prices via Scryfall.
Mutate {1}{U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) Flash Whenever this creature deals combat damage to a player, draw a card.