Font of Vigor

Five mana, split across two payments, to gain seven life: a rate that has never moved a constructed format, which is exactly what you would expect from lifegain priced for its own sake. The life total is not the resource that wins or loses most games, and committing a card, two mana up front, and three more on activation to pad it almost never earns the slot. What this offers over a straightforward instant like Healing Salve or Renewed Faith is the timing flexibility of sitting on the battlefield: it costs two to deploy, then waits, and the seven life arrives on whatever turn the math finally matters. That two-step structure is the real wrinkle. The enchantment can be dropped early and held, then cracked in response to a burn spell or a lethal swing, asking for the three-mana activation only when the payoff is needed. For a deck that cares about thresholds (a devotion count, an enchantment-matters trigger) a permanent that converts to life on demand reads differently than a one-shot spell that has to be cast at the moment of crisis. The ceiling stays low because the floor is just a sizable lifegain spell stretched across two installments; the appeal, such as it is, lives entirely in being a sittable permanent rather than a reactive card in hand.