Oops! All Spells is a combo deck that wins on turn one or two by milling itself with Balustrade Spy or Undercity Informer, then reanimating creatures via Dread Return or casting Thassa's Oracle with an empty library. Your removal spells are nearly useless here since the opponent runs almost no creatures that attack — Fatal Push and Snuff Out come out entirely. Bring in Grafdigger's Cage to shut off Dread Return and Reanimate, Dauthi Voidwalker to exile cards as they mill and prevent graveyard recursion, Force of Negation to counter the key mill spell or Thassa's Oracle for free, and Surgical Extraction to rip Thassa's Oracle or a key combo piece once you see it. Daze is cut because the opponent goes mana-positive with Dark Ritual and Spirit Guides and will often be unaffected by it, while Thoughtseize and Force of Will remain your best interactive pieces to disrupt the combo before it assembles.