Hooratio's Spellbook

{t} Sacrifice this card; exile {x} instant and/or sorcery spells from your graveyard, and put a spellbook counter on each card exiled.

{t} Cast an exiled instant or sorcery spell with a spellbook counter on it, without paying it's mana cost.

This card can be cast from your graveyard, but during the turn you do so, you cannot cast any non instant or sorcery spells.