Aetoris, Child Savant

+1: Exile an instant or sorcery from your graveyard. You may copy that spell this turn.
-2: Look at the top 3 cards of your deck. You may reveal any number of instants or sorceries and exile them. You may copy those spells this turn.
-5: Copy all cards exiled by Aetoris. You may cast those copies this turn without paying their mana costs.