Gen 9 OU
Arcanine-Hisui @ Heavy-Duty Boots
Ability: Rock Head
Tera Type: Rock / Flying
EVs: 252 Atk, 4 Def, 252 Spe
Jolly Nature
- Head Smash
- Flare Blitz
- Stealth Rock
- Will-O-Wisp
Not as good as many expected it to be, but pretty good. Head Smash and Flare Blitz are great STAB moves. Stealth Rock is good on this Pokemon because of its ability to threaten Great Tusk and Corviknight with Flare Blitz and Will-O-Wisp, making hazard removal more difficult. Will-O-Wisp can cripple a bulky Ground type Pokemon trying to switch in, making Great Tusk and Garchomp easier to handle.
Tera Rock can boost Head Smash, Tera Flying can remove the weaknesses to Fighting, Ground and Water.
One partner that I found to be good with Hisuian Arcanine is Rotom-Wash, as it synchronizes greatly with Arcanine-H's horrible defensive typing, with its Water resistance and Ground immunity. It has the ability to safely bring in Arcanine with Volt Switch, and threatens bulky Grounds with Hydro Pump damage.