Amoeboid Changeling is a common Creature — Shapeshifter card from Premium Deck Series: Slivers (H09), collector number 3. Current market price: — (foil $4.28), TCGplayer market prices via Scryfall.
Changeling (This card is every creature type.) {T}: Target creature gains all creature types until end of turn. {T}: Target creature loses all creature types until end of turn.