Clashing Magic

Only cast this if there are two or more spells on
the stack.
Split-second
Deal 2 damage to target creature, tap another
target creature, then empower 2 (Any number
of instants or sorceries in your graveyard with a
combined converted mana cost of 2 can be cast this
turn and when they would enter the graveyard, exile
them instead. They cost {1} less.)