Morphling is a rare Creature — Shapeshifter card from Urza's Saga (USG), collector number 85. Current market price: $41.62, TCGplayer market prices via Scryfall.
{U}: Untap this creature. {U}: This creature gains flying until end of turn. {U}: This creature gains shroud until end of turn. (It can't be the target of spells or abilities.) {1}: This creature gets +1/-1 until end of turn. {1}: This creature gets -1/+1 until end of turn.