Zef, the Shadowed Trickster

{b}{b}: Blink Zef
Whenever Zef, Shadowed Trickster deals combat damage to a player, that player exiles a card from his or her hand at random.
{x}:You may cast a card exiled with Zef without paying it's mana cost, where it's converted mana cost is equal to X. Spend only {b} on X.
First Strike