Restless Bloodseeker // Bloodsoaked Reveler

The whole design hinges on a self-feeding loop that most lifegain payoffs never bother to close. Both faces make a Blood token at end of turn if you spent the turn climbing your life total, but the back face also drains two and gains two on every activation. That gain is itself what arms the next Blood trigger, so once the mana is available the engine sustains its own condition without any outside help. Getting there is the tension: transforming costs two Blood tokens sacrificed at sorcery speed, so you first have to generate the resource the flip consumes, then spend it, then rebuild a fresh economy on the other side. The front is a patient value piece, filtering cards and stockpiling Blood while you find your footing; the back is the drain finisher that stockpile was always saving up for. The distinguishing move among the era's flood of Blood-makers is that it both produces the token and pays it off inside a single card, folding Blood's discard-and-draw filtering into a life-swing clock rather than treating the token as incidental chaff. The 1/3 body is deliberately unthreatening on the front so the card reads as an engine rather than a beater, and the transform gate keeps you honest: you cannot skip the accumulation phase to jump straight to the payoff.