Spider Murphy, Net Prodigy

When Spider Murphy enters the battlefield, create Cyberdeck, a legendary colorless artifact with hexproof and "Whenever you cast an instant or sorcery spell from your hand, exile it with a Data Counter instead of putting it into your graveyard as it resolves."
{2},{t}: Remove a Data Counter from a card that you own in exile. You may cast that card from exile without paying it's mana cost.

Whenever you remove a Data Counter from an exiled card you own, draw a card from the bottom of your library.