Desolation of Smaug

Dragon midrange can turn this into a one-sided 3-damage sweeper plus a four-mana follow-up; Slagstorm is cheaper and broadly useful.

Could be wrong if Revealed context does not establish a competitive Dragon shell with sufficient payoff density.

It is slower and narrower than Anger of the Gods; only a supported Dragon shell turns the restricted mana into a meaningful tempo swing.

Could be wrong if Existing Dragon strategies may be too slow or lack enough room for a conditional four-mana sweeper.

Brotherhood's End is cheaper and useful without tribal setup. This needs an unusually fast, resilient Dragon shell to justify four mana.

Could be wrong if Modern's speed and cheap interaction may make the sweep-plus-Dragon turn arrive too late.

Toxic Deluge is cheaper, scalable, and unconditional; this four-mana sorcery needs a rare Dragon-specific payoff turn to compete.

Could be wrong if Legacy Dragon shells may not be competitive enough to support a sorcery-speed four-mana effect.

Dragon decks can preserve their own board, clear many opposing utility creatures, and immediately deploy a Dragon with the refund.

Could be wrong if Three damage may miss too much of developed multiplayer boards, and the card is nearly dead outside Dragon density.

A four-mana 3-damage sweep will often reset a Limited board, and preserving Dragons plus a possible immediate follow-up is exceptional upside.

Could be wrong if Creature toughness, Dragon density, and set speed are unknown; many large creatures could substantially weaken the sweep.