Twit Twat Twittlly Deep

Whenever a nontoken artifact enters the battlefield under your control pay {u}{b}{r} make a copy of that artifact.
Whenever you cast an instant or sorcery spell pay {u}{b}{r} copy that spell you may choose a new target.
At your draw step you may choose to return target artifact, instant or sorcery card from your graveyard
to your hand rather than draw a card.
Then lose life equal to its converted Mana cost.