Visión volcánica

Text:

Rulings:

• 2/25/2015 If the target instant or sorcery card becomes an illegal target before Volcanic Vision resolves, the spell won’t resolve and none of its effects will happen. No damage will be dealt and Volcanic Vision won’t be exiled.
• 2/25/2015 If the target has <img src="/Handlers/Image.ashx?size=small&amp;name=X&amp;type=symbol" alt="Variable Colorless" align="absbottom" /> in its mana cost, X is 0.