Colonel Autumn

Exploit was originally a one-shot bargain: a creature enters, you sacrifice something, you get a payoff scaled to the trade. This design turns that single transaction into a recurring engine by handing exploit to every other legendary creature you control, then rewarding each sacrifice with an army-wide +1/+1 counter. The tension is that exploit is normally cheap because it happens once, on entry; distribute it across a board of legends and every new legendary arrival becomes another chance to eat a creature and pump the whole team. What keeps this from spinning free is that exploit still triggers only on a creature entering the battlefield, so the engine runs at the speed you can deploy bodies, and each exploit costs you a creature you already own. That sacrifice-for-counters loop turns fodder into permanent stats rather than fleeting value, which is a different axis than most aristocrats payoffs, most of which route death triggers into damage or drain. The lifelink on a modest frame is the quiet stabilizer: as the counters accumulate, the lifegain scales with them, so the board that grows also insulates you from the aggression the sacrifices might otherwise expose you to. It reads as a build-around signpost for a legends-matter sacrifice deck, an intersection that had not had a dedicated payoff before this.