智慧爆发

Text:

Rulings:

• 12/7/2018 If the target permanent or player becomes an illegal target for Blast of Genius, the spell doesn’t resolve. You don’t draw or discard any cards.
• 12/7/2018 If a discarded card 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 considered to be 0.