Jolene, Plundering Pugilist

The 4/2 body is the whole design brief compressed into a stat line: four power is the exact threshold the attack trigger cares about, so she qualifies herself, and two toughness is the tax that keeps the payoff cheap enough to justify. The trigger reads "one or more," so it mints exactly one Treasure per combat no matter how many big creatures you send in; the reward is stapled to the declaration of attackers, not to the width of the swing or to breaking through. That is the wrinkle that pulls Gruul out of its usual bind. This color pair rarely gets to turn the attack step into a repeatable resource, and here a lone Jolene swinging into an open board makes a Treasure whether or not she connects, because the trigger never checks combat damage. The second half is where those Treasures go: a repeatable one-damage ping that consumes the very tokens the first ability prints. Every Treasure burned on a shot is a Treasure not spent ramping or fixing, so she splits into two mutually exclusive engines. One grinds a board apart a point at a time and doubles as reach; the other stockpiles fuel for something larger. Neither is free, and two toughness means she folds to almost any burn spell or profitable block before either engine snowballs, which is exactly the trade she dares the opponent to make.