Chameleon Colossus is a mythic Creature — Shapeshifter card from From the Vault: Twenty (V13), collector number 16. Current market price: — (foil $3.13), TCGplayer market prices via Scryfall.
Changeling (This card is every creature type.) Protection from black {2}{G}{G}: This creature gets +X/+X until end of turn, where X is its power.