Smaug, the Great Calamity // Spew Flame

Well below Doomsday Excruciator (46): five-mana sorcery removal followed by a seven-mana 5/5 flyer is too slow for current curves.

Could be wrong if A future red ramp or control shell could value the built-in two-for-one more than current context suggests.

Far weaker than Carnage Tyrant (43) as an expensive payoff, while neither a five-mana removal spell nor a 7-mana 5/5 is efficient here.

Could be wrong if Unexpected mana acceleration or a creature-heavy metagame could create a narrow ramp use.

Reanimator has vastly better payoffs such as Atraxa (77) and Griselbrand (80); hard-casting is implausible and Spew Flame is far off-rate.

Could be wrong if A new cheap Dragon-specific cheat effect would be needed to make the otherwise blank creature relevant.

Sneak/Show and Reanimator have much stronger payoffs than Atraxa (83), and this creature offers no ETB effect; the Adventure is unusably slow.

Could be wrong if Only unusually efficient future Dragon cheating or a graveyard-specific payoff could change its prospects.

A better immediate floor than Bramble Wurm (18), but five-mana sorcery-speed removal and a seven-mana 5/5 remain far too slow for Pauper.

Could be wrong if A slower red ramp shell could exploit the card advantage if the format's pace drops substantially.

Dragon decks can use both halves, but it is far below Hullbreaker Horror in impact: five mana for creature-only removal and a vanilla 7-mana flyer are replaceable.

Could be wrong if More Dragon cost reduction or tribal payoff density could make the two-spell package a worthwhile thematic inclusion.

Five damage should answer most creatures, then the exiled card later supplies a 5/5 flyer. The delayed, mana-intensive sequencing keeps it below bomb status.

Could be wrong if Unknown speed, removal quality, and how often five damage misses key creatures could move it substantially.