Rampaging Aetherhood

A self-priming engine wearing a green beater's stat line. Energy is a resource that lives with the player: a counter you accumulate and spend on payoffs, rarely generated in a self-contained loop on a single body. Here the whole cycle closes on one creature. It pays you energy equal to its own power at the start of your turn, then invites you to convert that energy straight back into +1/+1 counters. The compounding is obvious once you trace it. A 4/4 nets four energy; spend it and you have an 8/8 the following upkeep making eight; the growth accelerates against itself because the resource output and the payoff scale off the same number. Trample turns the swelling body into damage no single blocker can absorb, and ward is the tax that keeps the snowball from being unwound by a cheap removal spell before the engine gets a turn to run. The design resolves the usual friction in energy strategies, which want a critical mass of cheap generators and cheap sinks to reach escape velocity: this collapses both halves into a five-mana creature that only needs to survive one upkeep to threaten a runaway board. It is a rare self-contained energy payoff that does not ask you to assemble the rest of the archetype around it first, since the generator and the sink are the same permanent.