Whipflare

The asymmetry is the whole pitch. Pyroclasm has long offered a two-mana red sweeper that hits everything, your board included, which means it only works when you have nothing to lose or nothing on the table. This variant carves out artifact creatures from the damage, and that exemption rewrites who wants to cast it: a deck full of artifact bodies (Phyrexian-flavored myr, equipped servos, any aggressive shell leaning on metal) can fire it into the opponent's small creatures and walk away untouched. The lineage matters here. Red's cheap mass-removal has historically been a desperation tool because it cuts both ways; bolting the cost to an artifact-creature exemption turns a symmetrical wrath into a one-sided board wipe for the right build. Two damage is a deliberate ceiling: it clears the mana dorks, the tokens, the early aggression, and leaves anything that survives the early turns intact, so it reads as an anti-aggro and anti-go-wide tool rather than a catch-all answer. The design's elegance is that it asks nothing extra of you beyond building toward the artifact half of the color pie, where Pyroclasm asks you to either empty your own board or accept the collateral.