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Astroquarium
Artifact
When this artifact enters, 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 this artifact's art are completely covered, that creature becomes a blue Octopus with base power and toughness 8/8 instead. Activate only as a sorcery.