Jerren, Corrupted Bishop // Ormendahl, the Corrupter

This is a payment ladder built around one very specific number: thirteen life. The front half runs a token-and-drain engine that quietly walks your life total downward every time a nontoken Human you control dies, each death shaving off a point and replacing the body with a 1/1. That drip is not incidental; it is the transform condition's delivery mechanism. You are meant to sculpt your life total toward exactly thirteen, then pay the six-mana toll at your end step to flip. Most transform payoffs in this style key off a game state you can read (an untapped land count, a card in exile); this one demands you land on a single, precise value, which turns the lifelink activation on the front side into a steering wheel rather than a defensive tool. You gain life to overshoot the mark, or hold back to arrive on target.

What waits on the back is a flying, trampling lifelinker that eats your own board for cards, and the flip cost's black pips plus the sacrifice-for-draw ability tie the whole thing to an aristocrats shell where creatures dying is the plan, not the accident. The demon is the reward for having built a machine that treats your own life and your own creatures as fuel. The cleverness is that the front side's downside (bleeding life on every Human death) is exactly the resource the transform wants spent, so the drawback and the payoff are the same clock read from opposite ends.