Flames of the Raze-Boar

The design bet here is legibility: give a red deck a big enough body on the board and this stops reading as an overcosted single-target burn spell and becomes a lopsided sweep. The four damage to a chosen creature is unconditional (enough to clear most midrange bodies, though not automatic against high toughness, indestructibility, or damage prevention), but the two-damage rider across the rest of that opponent's board fires only when you already field a beater the size of a hasty three-drop or a modest token swarm's anchor, a threshold an aggressive or midrange red deck clears almost by accident. That gate does all the balancing work: it turns an expensive removal spell into a payoff for having committed to the board, rewarding the deck that least needs the help while denying the effect to control shells that would otherwise abuse a wrath tucked into removal. Instant speed sharpens the reward. Because the check reads the battlefield on resolution, you can hold this up through a combat step, let a blocker trade or a token slip into play, and still turn the corner into a sweep at the exact moment the opponent overcommits. The result is a conditional board wipe stapled to a large single-target burn spell, with the condition written to be as easy as possible for the deck it was built for to satisfy.