This definitely looks to be the most optimal set. It makes good use of Dracozolt’s typing and accomplishes something besides spamming a 170 BP move (which Dracovish does better due to less viable immunities and synergy with rain).
I think this would pair very well with Toxic Spikes since fat grounds like Gastrodon/Seismitoad/Hippowdon will no longer be an answer, especially since Dracozolt prevents Corviknight from using Defog and scares Pex away from switching in to absorb them. No more pivoting around against this unholy abomination. Dragon Claw over Outrage since the extra power is no longer necessary.
Really excited to try this mon out.
Once Rillaboom gets Grassy Surge it'll be one of the best partners possible IMO (okay theorycrafting but still). Knock Off to get rid of Lefties/Helmet on Corviknight/Pex/Ferrothorn/[FatGrounds] make them less good answers in the long run, Grassy Terrain gives very appreciated recovery and weakens EQ, Drum Beating slows down stuff so Dracozolt has a better shot of powering up Bolt Beak, Taunt stops Ferro/Pex from setting up hazards or Toxic-ing/Leech Seeding Dracozolt on the switch, and U-Turn is a great pivoting option (Rillaboom isn't very fast but not particularly slow, which can be pretty darn useful).
Sure, there's a stacked Ice-weakness, but there are still 4 other teamslots available, and Zolt and Boom (TRADEMARKING THIS CORE NAME NOW) still have good type synergy.