Thanks for the feedback, ginganinja! I was comparing Moxie ScarfMence versus Dragonite, because I thought either of them could pair up well with SD Scizor to check a multitude of threats.
I ran some calcs and Salamence does KO Haxorus for the most part (97-115% to 36 HP Haxorus; 100% OHKO against min HP Haxorus) and OHKOs Latios with ease. It does need to rely on Outrage or super-effective coverage moves to take out neutral targets, such as Starmie, or Tornadus, however. Stone Edge is actually not a bad choice to have on a ScarfMence imo.
The flaw in Dragonite is that it must rely on ExtremeSpeed to check mons. ScarfMence can more often than not utilize harder hitting moves for its revenge kill. However, DDNite does offer more flexibility, and it offers less chance for Scizor to ruin our team.
Thus, I will nominate DD Nite
and SD Scizor
for our revenge-killing needs. I am nominating them together - which makes this submission different from PenguinX's. The set I propose is also slightly different, too.
Scizor @ Metal Coat
EVs: 248 HP / 252 Atk / 8 Spe
Adamant Nature (+Atk, -SpA)
- Bullet Punch
- Swords Dance
Unlike the LO SD set, this has U-turn to provide the switch advantage when it is not ready to sweep. This comes in handy for switching Zoroark or any of our other Sweepers safely into say a Jellicent or Heatran that attempts to wall Scizor. Metal Coat preserves Scizor's usable bulk while boosting Bullet Punch's power. It also helps to bluff this set as a choiced set.
Dragonite @ Life Orb / Lum Berry
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature (+Atk, -Spe)
- Dragon Dance
- Fire Punch
I am suggesting Life Orb > Lum Berry (although both are still available as options), since it provides significant power to not only Dragonite's ExtremeSpeed, but towards his other moves as well. After a DD, +1 LO Outrage will 2HKO max HP Heatran and Jirachi. Skarmory loses 61-71% from +1 Fire Punch, a solid 2HKO. I just think it's more conducive for checking threats with ExtremeSpeed. It can still make use of MultiScale to pull off the free DD.