Well of Lost Dreams

Lifegain had always been a dead-end resource in competitive play: it kept you alive, but it did not advance your board or refill your hand. This card is the conversion engine that turns the dead resource live, taxing each point of incidental gain into a card at a rate you set yourself. The X-payment clause is the whole balancing act: you never have to draw, and you never draw more than you gained, so the well rewards lifegain you were already generating rather than asking you to chase it. That makes it a parasite on existing engines instead of a standalone plan. The structural ancestor is Greed, which paid life for cards directly; this inverts the relationship, paying mana to capitalize on life rather than spending life to buy cards. Where it sings is alongside repeatable, small-increment gain (cards that drain a life on every attack, every cast, every life loss your opponent suffers), because each trigger is a separate opportunity to convert, and a board full of lifelink or a single attrition outlet can empty your library across a turn cycle. The cost is the dependency: drawn in isolation, with no source of incidental life around it, the well does exactly nothing, which is the friction the design accepts to keep the rate as generous as it is.