Librarian's Apprentice

When this creature enters the battlefield, you may place 2 spellbook counter in this card. Whenever
a Spellbook sorcery is cast, you may add a
Spellbook counter in this card.
{w}{t} — Remove 3 Spellbook Counters from
this card. Target a Spellbook Sorcery in
your graveyard. Add it to your grimmoire.
{b}{t} — Sacrifice this card -- Target a Spellbook Sorcery in your graveyard. Add it to your hand.