Mage's Sanctum

Abjure {3}(You may exile a noncreature spell in any graveyard with a converted mana costs of {3} or
greater to cast this spell for {2}{u} until end of turn.)
Spells cast during your next turn have Split
Second. (As long as those spells are on the stack,
players can't cast spells or activate abilities that
aren't mana abilities.)