Monferno @ Choice Scarf
Ability: Blaze
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Flare Blitz
- Close Combat
- Endeavor
- U-turn

Monferno @ Firium Z
Ability: Iron Fist
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Swords Dance
- Flare Blitz
- Mach Punch
- Close Combat

Monferno @ Focus Sash
Ability: Iron Fist
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Stealth Rock
- Taunt
- Endeavor
- Mach Punch

Monferno @ Life Orb
Ability: Blaze
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Nasty Plot
- Vacuum Wave
- Focus Blast
- Fire Blast

Monferno @ Eviolite
Ability: Iron Fist
EVs: 252 HP / 144 Def / 36 SpD / 76 Spe
Careful Nature
- Taunt
- Low Kick / Fire Punch
- Will-O-Wisp
- Slack Off

Additional Moves: Thunder Punch, Rock Slide
Additional Items: Fightium-Z
Notes: Thunder Punch (and Rock Slide) which was formally used for Swanna still allows you to hit threats like Oricorio-Belle which resisted your STAB options and takes little from U-turn.
All-out-Pummeling gives you a more accurate fighting option for one turn if you are using the special sweeping variant although this is arguably weaker than the physical variant.
The bulky variant functions as a defensive Rotom-Frost check. These Ev's allows it to outpace minimum speed Bulk Up Vigoroth and cripple it with taunt / will-o-wisp while +1 Return will only be able to 3hko you after Stealth Rocks. This also applies for Non-specs Rotom-Frost, with both Sub-Zero Slammer and thunderbolt being a 3hko at best after Stealth Rocks.