Light of Promise

Lifegain has always been the game's designated dead-end mechanic: incidental value that rarely converts into a threat clock. This Aura is a converter. It reads every point of life you gain as a growth trigger, transforming the least aggressive resource in white's toolkit into a scaling body. The math compounds fast because it triggers on each life-gain event, so a payoff that would normally trickle in the margins (a lifelink hit, a soul-sister trigger, an incidental drain) instead stacks permanently onto one creature. The design tension is entirely in that first word: Enchant. Committing a card and three mana to a single target means the whole engine folds if that creature is answered, which is the discipline that keeps a potentially runaway counter-maker from being oppressive. Time your life-gain around when the counter matters and you get an outsized swing; play it into open removal and you have spent an Aura on nothing. It sits in a small lineage of white cards trying to make lifegain do combat work rather than just pad a total, and it is one of the more literal attempts: no thresholds, no once-per-turn clause, just a direct exchange of life into size.