Standardize
Instant
Choose a creature type other than Wall. Each creature becomes that type until end of turn.
At that point, the wizards' argument got a lot uglier.
Justin Sweet
Onslaught (ONS)
• #116Rulings
This spell only affects creatures on the battlefield when it resolves.
(wotc • 2004-10-04)
Rulings
This spell only affects creatures on the battlefield when it resolves.
(wotc • 2004-10-04)