Ian Malcolm, Chaotician

Whenever a player draws their second card each turn, that player exiles the top card of their library.
During each player's turn, that player may cast a spell from among the cards they don't own exiled with Ian Malcolm, and mana of any type can be spent to cast it.

Howling Mine

At the beginning of each player's draw step, if this artifact is untapped, that player draws an additional card.

Stitch in Time

Flip a coin. If you win the flip, take an extra turn after this one.