Arctic Merfolk is a common Creature — Merfolk card from Planeshift (PLS), collector number 21. Current market price: $0.19 (foil $2.70), TCGplayer market prices via Scryfall.
Kicker—Return a creature you control to its owner's hand. (You may return a creature you control to its owner's hand in addition to any other costs as you cast this spell.) If this creature was kicked, it enters with a +1/+1 counter on it.