Gates Ablaze

A sweeper whose power is a deckbuilding tax paid in advance: X is the number of Gates you control, so the size of the wipe is welded to how far the manabase has already been bent toward a lands theme. That is the tension worth naming. Gates are slow, enter tapped, and pull against red's clock, but a full Gate suite turns this into a cheap Pyroclasm that scales upward with every Gate you add. With no Gates it deals zero to everything, so this is not a splashable removal spell you tuck into any red list; it is a keystone that only earns its slot once the manabase has been built around it. The design lesson lives in that conditional. Rather than pricing a scalable sweeper by mana, it prices it by identity: the same lands that fix and ramp you in a Gate-matters shell become the ammunition for the sweep, so the payoff and the cost are the same build decision. It is a symmetric board wipe, hitting each creature including your own, which is the friction any red mage using it has to plan around: a Gate deck wants to survive the wipe with something bigger, or empty its own board first, or simply accept the trade. Red rarely gets clean mass removal, and never for free; here the toll is the manabase itself.