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, Discard a card: If a blue permanent is on the battlefield, draw a card. Otherwise, tap target blue permanent. Activate this ability only during your turn.
| Oracle text |
| Cobbled Stone {4} |Artifact| Elementals don’t untap and creatures you control have creaturewalk. / 2U, Tap, Discard a card: If a blue permanent is on the battlefield, draw a card. Otherwise, tap target blue permanent. Activate this ability only during your turn. |