Vargos, Mad Raider

Partner with Kiana, Smuggler Captain (When this creature enters the battlefield, target player mayput
Kiana, Smuggler Captain into their hand from their library, then shuffle.)
Raid - At the beginning of your end step, if you attacked with a creature this turn, create a
colorless Treasure artifact with "{t}, sacrifice this artifact: add one mana of any color."
"I can steal anything for you."