Calamity, Galloping Inferno

The Mount creature type carries a design tension that Saddle, its keyword, exists to resolve: how do you make a vehicle-style payoff feel like a creature deck rather than a Vehicles deck? Saddle answers by demanding a creature you would have wanted to play anyway, then asking what the Mount adds on top. This card pushes that answer to its loudest setting. Saddle 1 is the cheapest entry tax the keyword offers, so almost any board can pay it, and the payoff stamps out two attacking token copies of the creature that paid: the saddler taps to saddle, then watches two attacking duplicates of itself swing alongside. The copy clause is structurally a combat-tied Feldon of the Third Path, scaled to two tokens and triggered by attacking instead of an activated ability, with the end-step sacrifice doing the work that exile clauses do on other temporary-copy effects: it keeps the loop one-shot per attack rather than permanent. Because the ability repeats the process, the obvious line is to name the same nonlegendary bomb twice and field two copies of your best attacker; the nonlegendary filter is the one real discipline, cutting off the "copy my best legendary three-deep" line and forcing the deck to find a nonlegendary worth duplicating. Six mana for a 4/6 hasty body that conjures two attacking copies of a chosen creature on the turn it lands works only because the saddle requirement, the nonlegendary filter, and the end-step sacrifice are each carrying balancing weight.