Spellcaster's Tome

Whenever you cast an instant or sorcery spell with converted mana cost 1 or less, add one mana of
any color to your mana pool.
{x}{x}, {t}: Copy target instant or sorcery spell you control with converted mana cost X. You may choose new targets for the copy.
{2}, {t}, Sacrifice Spellcaster's Tome: Draw a card.
An infinity of knowledge copied from musty scrolls.