Astroquarium [Unfinity]

Set: Unfinity Type: Artifact Rarity: Uncommon Cost: {2}{U} When Astroquarium enters the battlefield, you may put an art sticker on it.{1}, {T}: Until end of turn, target creature becomes a blue Shark with base power and toughness 4/4. If the cracks in Astroquarium's art are completely covered, that creature becomes a blue Octopus with base power and toughness 8/8 instead. Activate only as a sorcery.