Gonti, Night Minister

The original Gonti was a heist joke made permanent: enter the battlefield, dig four deep into an opponent's library, and steal one card to cast whenever you liked. This version keeps the theft engine but rebuilds it into a combat-damage table policy, and the shift is what makes it worth attention. Instead of one exiled card on a single trigger, every combat hit against an opponent skims the top of that opponent's deck and files it away for later use, and the mana-of-any-type clause means those stolen spells never brick on color. The design ties the reward to the thing black-based aggressive decks already want to do (connect with creatures), and it compounds: the more you swing through, the deeper your exiled toolbox of borrowed spells grows. The first ability is the stranger half. Handing every player a Treasure whenever they cast something they don't own reads like a downside, until you notice it refunds the mana you spend casting those stolen cards, feeding back into the second ability's engine. It is a symmetric-looking sweetener that a deck built around Gonti breaks in its own favor, since Gonti's controller is the one generating the largest supply of foreign spells to cast. Where the first Gonti was a one-shot value creature, this is a persistent larceny economy: a 3/4 that turns combat into an escalating claim on everyone else's library.