Stone Idol Generator

The clue is the toughness. A 6/12 trampler is a defensive statement dressed up as an attacker: it holds the ground against nearly anything and lives, which reframes what this engine is actually building. You feed it by attacking, one energy per creature that swings, and you cash out at sorcery speed, typically for a single token per turn since the activation taps the artifact. So the reward loop runs backward from what an energy source usually wants. Most energy payoffs convert a burst of triggers into a sudden swing; this one converts a wide, persistent attacking board into a slow accumulation of large, hard-to-remove artifact creatures. The clamps are what keep it grounded: the timing restriction means you never combo off in a single turn, and the six-energy tax means you must keep committing to combat to keep the tokens coming. The more your attackers trade away, the slower the generator turns. What it pays back is battlefield permanence rather than explosive tempo, a currency that compounds across a grinding game. A board of 6/12 walls does not race; it settles in, makes attacking safe, and turns every combat step you survive into another brick in a fortress that keeps growing.