Magical Blast (SDSC-EN031 Structure Deck: Spellcaster's Command) - Common Yu-Gi-Oh! Card

You can only activate this card when there is a Spellcaster-Type monster(s) on your side of the field. Inflict 200 points of damage to your opponent's Life Points for each Spellcaster-Type monster(s) on your side of the field. If this card is in the Grave