Damn. I completely missed the last round of voting. Oh well. Anyway, I'll nominate Tank Garchomp:
Garchomp @ Rocky Helmet
Ability: Rough Skin
EVs: 248 HP / 168 Def / 92 Spe
Impish Nature
- Dragon Tail
- Earthquake
- Stealth Rock
- Rest
Garchomp is a great counter to Victini and a decent check to Dragalge. Garchomp gets up rocks to weaken Victini, and it can easily tank Flare Blitz, Bolt Strike, and U-Turn. Victini also hates having to continually take damage from Rocky Helmet + Rough Skin. Garchomp survives Final Gambit with 78 HP - enough for two rounds of rocks damage. Rest helps against status from T spikes and Scald and improves Chomp's longevity and means Victini can't safely use Final Gambit. Chomp outspeeds Dragalge and can OHKO it after rocks with EQ. Dragon Tail takes a nice chunk out of both of them and neither likes taking repeated hazard damage. The only move Garchomp can't switch in on is Draco Meteor, and I guess Scald burns suck too, but its still decent at checking Dragalge. The speed EVs are enough to outpace Bisharp, so Gengar doesn't have to rely quite so heavily on Focus Blast to KO it - the speed is really hard to pinpoint because speed creeping is impossible with this project, but 92 speed EVs is what I'm going with. Garchomp has some good synergy with Gengar too, being able to punish priority users and faster physical threats who give it trouble. Nominating Garchomp does leave this core open to some threats - M-Alt to an extent, CB Azu, M-Diancie, Latis because speed ties, Prankster Twave Thundy, Torn-T, Manaphy, M-Mane, Starmie, M-Zam, Hippo, Raikou, weather offense (rain in particular), and probably some others. This list seems long, but we have four more teamslots to make use of.
Calcs:
252+ Atk Victini Flare Blitz vs. 248 HP / 0+ Def Garchomp: 85-101 (20.2 - 24.1%) -- guaranteed 5HKO
252+ Atk Victini U-turn vs. 248 HP / 0+ Def Garchomp: 67-79 (15.9 - 18.8%) -- possible 6HKO
0 Atk Garchomp Earthquake vs. 0 HP / 0 Def Victini: 270-320 (79.1 - 93.8%) -- guaranteed OHKO after Stealth Rock
0 Atk Garchomp Dragon Tail vs. 0 HP / 0 Def Victini: 82-97 (24 - 28.4%) -- 92.5% chance to 3HKO after Stealth Rock
0 SpA Adaptability Dragalge Draco Meteor vs. 248 HP / 0 SpD Garchomp: 416-492 (99.2 - 117.4%) -- 93.8% chance to OHKO
0 SpA Adaptability Dragalge Sludge Wave vs. 248 HP / 0 SpD Garchomp: 77-91 (18.3 - 21.7%) -- possible 5HKO
0 SpA Dragalge Scald vs. 248 HP / 0 SpD Garchomp: 65-77 (15.5 - 18.3%) -- possible 6HKO
0 Atk Garchomp Earthquake vs. 248 HP / 0 Def Dragalge: 296-350 (88.8 - 105.1%) -- guaranteed OHKO after Stealth Rock
0 Atk Garchomp Dragon Tail vs. 248 HP / 0 Def Dragalge: 180-212 (54 - 63.6%) -- guaranteed 2HKO after Stealth Rock and Black Sludge recovery
0 Atk burned Garchomp Earthquake vs. 248 HP / 0 Def Dragalge: 148-175 (44.4 - 52.5%) -- 81.3% chance to 2HKO after Stealth Rock and Black Sludge recovery
Edit: Just realized the Victini Calcs don't have any defensive EVs on Garchomp, but I'm on mobile so fuck it. Clearly, it's a pretty hard counter.