The new support for Red Dragon Archfiend does so much for the archetype. More searches, more consistency, and stronger boards despite the lack of Chaos Ruler.
Bystials work well with RDA and synergize with the Red Zone Trap and Red Supernova. Did you want to wipe the opponent's board twice per turn? Congrats, now you can. If Supernova gets tributed via kaiju/golem, you can banish it with a Bystial and bring it back with Red Zone.
Using Etude of the Branded you can make Calamity on your opponent's turn.
Siding:
You can trim a lot out but this is the consistency I want from the deck.
Remove Calamity and Etude for game 2. Game 3 may not be a bad option.
Scarlet Security is a searchable Harpie's Feather Duster for the low low price of having RDA on the field.
Weaknesses:
Nib, big rock no good. My friend says the only weakness of this deck is an in-engine monster negate for nib.
Some hands may have a whopping 0 non-tuners. Pray you open soul resonator or enjoy doing nothing.
A negated Red Rising feels bad...
Ancient Pixie is in case Bone Archfiend is negated.
Ending on an RDA means you need to banish Soul Resonator, just be aware.
A hand ending on Calamity requires a way into Bystial Lubellion or nice luck to open it.