Jacob

Double strike, Familybond - Sobecki: Trample.
Whenever Jacob deals combat damage to an
opponent that player exiles a card for each
Sobecki permanent you control from the top of
his or her library. You may play one of these
cards without paying its mana cost.
Whenever you cast a spell which you do not own, return a random card from your graveyard to
your hand.
He plays. With everyone and everything. And everything
and everyone plays with him - beautiful chaos.