Stormcaster Savant

Whenever you cast a blue or red spell, untap Stormcaster Savant.
{x}{u}{r}, {t}: Stormcaster Savant deals X damage to target creature or player, then draw a card.
"I'm sure we can come to an agreement, Mr. Lorius."
"Fine, boy, but don't expect me to treat you differently."
- Rex, to Lorius