Gonti, Lord of Luxury - 84 R KLD

Deathtouch
When Gonti enters, look at the top four cards of target opponent's library, exile one of them face down, then put the rest on the bottom of that library in a random order. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast that spell.

rare
Legendary Creature — Aetherborn Rogue
From the Magic: The Gathering set Kaladesh.