Poor Dracozolt, born into existence as the result of one Cara Liss this chimeric dinosaur must live with a horribly lopsided body that should have its internal organs exposed... And as it stands, it still got off best out of all of the Galarian Fossils.
Reckless Abandon
Dracozolt
Ability: Hustle
Item: Blunder Policy
-Bolt Beak
-Dragon Claw
-Earthquake
-Substitute/Bulldoze/Fire Fang
Nature: Adamant (+ATK, -SATK)
EVs: 252 ATK/252 SPE/4 HP
Dracozolt may have an odd and overall unimpressive stat distribution, but the sheer power of Bolt Beak + Hustle cannot be underestimated.
252+ Atk Hustle Dracozolt Bolt Beak (170 BP) vs. 252 HP / 4 Def Corviknight: 728-858 (182 - 214.5%) -- guaranteed OHKO
252+ Atk Hustle Dracozolt Bolt Beak (170 BP) vs. 252 HP / 252+ Def Toxapex: 408-480 (134.2 - 157.8%) -- guaranteed OHKO
252+ Atk Hustle Dracozolt Bolt Beak (170 BP) vs. 0 HP / 4 Def Aegislash-Shield: 283-334 (108.4 - 127.9%) -- guaranteed OHKO
252+ Atk Hustle Dracozolt Bolt Beak (170 BP) vs. 252 HP / 160 Def Mandibuzz: 626-740 (147.6 - 174.5%) -- guaranteed OHKO
Admittedly, it helps that most walls are weak to Electric. And for the walls that are resistant/immune to Electric:
252+ Atk Hustle Dracozolt Dragon Claw vs. 252 HP / 200+ Def Kommo-o: 230-272 (64.9 - 76.8%) -- guaranteed 2HKO after Leftovers recovery
252+ Atk Hustle Dracozolt Fire Fang vs. 252 HP / 252+ Def Ferrothorn: 232-276 (65.9 - 78.4%) -- guaranteed 2HKO after Leftovers recovery
252+ Atk Hustle Dracozolt Dragon Claw vs. 252 HP / 252+ Def Hippowdon: 115-136 (27.3 - 32.3%) -- 7.3% chance to 3HKO after Leftovers recovery
252+ Atk Hustle Dracozolt Dragon Claw vs. 252 HP / 252+ Def Seismitoad: 156-184 (37.6 - 44.4%) -- 4.7% chance to 2HKO after Leftovers recovery
As such, Dracozolt is much like Dracovish, incredibly reliant on its signature move, but when you are going up against anything that resists it (that isn't Dragon, cause STAB Dragon Claw still OHKOs anything aside from Kommo-o and Kyurem [who still dies 93% of the time]). As such Dracozolt makes a fantastic Wallbreaker almost on par with its brethren Dracovish.
Hustle's accuracy drop is unfortunate, but can be taken to Dracozolt's Advantage with Blunder Policy, which gives Dracozolt an agility when it misses, which means Bolt Beak gets a power boost against most targets, and at +2 Speed Dracozolt will outspeed a Positive max speed Dragapult (253 vs 251 at lvl 50) making counter play much more difficult.
As for the rest of the moveset, Dragon Claw is secondary STAB that dispatches Electric resistant Dragons, and Earthquake hits select targets that the STABs miss. Final move is up to preference. Substitute gives Dracozolt some breathing room despite Hustle and protects against Status attempts from the Walls it is sent to dispatch. Bulldoze offers alternate speed control if Blunder Policy was knocked off or the boost was phazed, and Fire Fang hits Ferrothorn.
Preferred Partners
Dracozolt likes allies who can dispatch the Ground types that trouble it so. Ferrothorn and Cloyster make excellent pivots for Dracozolt, both not sharing any weaknesses and able to maim if not OHKO opposing ground types. Seismitoad is another option, not sharing any weaknesses with Dracozolt aside from Freeze-Dry, but is less bulky than the aforementioned for switching in. Dracozolt works great on Sticky Web teams, loving the speed drop from the Web for Bolt Beak (but being redundant with Galvantula and competing with Dracovish hurts). Other more offensive allies may be preferred for pre-emptively removing Ground types so Dracozolt can wall break in peace.