City of Death

Chapter I mints a Treasure, and every chapter after copies a non-Saga token you already control: point the first copy at that Treasure, and the machine starts eating its own tail, spawning another Treasure copy each chapter and snowballing the ramp back into the enchantment that started it. The design cleverness is in the target text's indifference: it does not care what the token is, only that it is a non-Saga token you control. A Food, a Clue, a 1/1 soldier, a construct: whatever your board is generating, this turns one of them into five extra copies across its life, and because the counter lands after your draw step, each chapter reads the board fresh rather than locking a single choice at cast. The Saga frame is what keeps the compounding honest: it sacrifices after VI, so the copy factory runs on a hard six-turn clock, and every point of value is metered out one chapter at a time rather than dumped at once. It rewards a board that already makes tokens worth duplicating; on an empty battlefield past the Treasure it just copies the Treasure and reads as slow, redundant ramp. The interesting axis is that a green card is doing artifact-token math: Treasures beget Treasures, and the enchantment turns the token economy into an escalating resource curve without ever touching a mana rock or a ritual.