Choose any target. Draw three cards, then discard a card. Blast of Genius deals damage equal to the discarded card's mana value to that permanent or player.
Legalities
Not Legal
Standardbrawl
Brawl
Future
Pauper
Alchemy
Historic
Standard
Gladiator
Oldschool
Premodern
Historicbrawl
Paupercommander
Explorer
Predh
Timeless
Legal
Duel
Penny
Legacy
Modern
Pioneer
Vintage
Commander
Oathbreaker
Rulings
2018-12-07
If a discarded card has in its mana cost, X is considered to be 0.