Darumaka-Galar (M) @ Eviolite
Ability: Inner Focus
EVs: 100 HP / 100 Atk / 100 Def / 100 SpD / 110 Spe
- Ice Punch
- Brick Break
- Fire Punch
- Zen Headbutt
Adamant Nature boosts Attack stats by 10%. Raises Defense and Special Defense with the Eviolite. Giving it a boost of +75.5 (6 at level 5) Defense and Special Defense and a total of 226.5 (18 at level 5) Defense and Special Defense. Ice Punch for STAB, Brick Break as a reliable Fighting type move (also Steel, Dark, Normal, Ice, and Rock coverage). Fire Punch as an alternative for Steel types, also Grass and Bug type coverage and an alternative Ice coverage (since it can't learn any moves for Fire types). And finally, Zen Headbutt for Fighting and Poison coverage. Darumaka can already take out most Pokémon with this set, and it'll work even better with a team (and, the gender is just for my preference).
Replay for "proof" that it's a good set (with the help of some of my other Pokémon of course).