Role: Fast N’ Strong Sweeper
Regidrago @ Focus Sash/ Leftovers
Ability: Dragon's Maw
EVs: 252 Atk / 4 SpD / 252 Spe
- Dragon Dance
- Dragon Claw
- Fire Fang / Hammer Arm
- Explosion / Substitute
Dragon’s Maw is powerful, multiplying Regidrago’s Dragon-type attacks by 1.5x, although Regidrago’s movepool is not that great for much coverage either. Focus Sash is for guaranteeing you get a Dragon Dance off, although Icicle Spear Kyurem and priority users such as Aegislash, which needs to be immediately eliminated. Dragon Claw is STAB and gets boosted by Dragon’s Maw, which makes knocking out Dragon types and other types that are neutral to Dragon type moves easy peasy.
Fire Fang is for coverage against Steel types such as Skarmory and Aegislash, and don’t forget our little buddy Excadrill. Hammer Arm is another choice, as it hits Steel types harder, but doesn’t affect Aegislash at all, so Fire Fang > Hammer Arm. Explosion is a very tricky choice, as it is very powerful and physical, making a great suicide choice for when facing Fairy types, except Magearna, which gets countered by Fire Fang.
Although Magearna will be 2HKOed by a Regidrago’s Fire Fang that Dragon Danced twice, Teleport Clefable gets OHKOed by Regidrago with 2 times Dragon Dance and with the cost of Regidrago itself, so hope that Clefable or Magearna uses Stealth Rock first or predicts mistakenly and switches, so you can still save that Focus Sash and Dragon Dance twice, or even, luckily, thrice, if Ferrothorn sets up the rocks and spikes. Substitute is mandatory with Leftovers, as it immediately renders Focus Sash useless.
Substitute also covers Regidrago from Ferrothorn’s annoying Thunder Wave or Toxic, as it makes Regidrago not a reliable source of recovery. Its all really just about predicting.
Hope you like this moveset.