Extirpate

You don't have to find and exile cards with the same name as the target card in its owner's hand or library if you don't want to, but you do have to exile the cards from the player's graveyard.

Because the first step of casting a spell is to move it from the zone it's in, Extirpate can't be used to stop a spell with flashback from being cast after its controller has announced that they're casting it.

If the resolution of a triggered ability involves casting a spell, that spell can't be cast if a spell with split second is on the stack.

Casting a spell with split second won't affect spells and abilities that are already on the stack.