Call me crazy, but is a specially based mixed set possible? V-Create has an insane amount of base power (180) and it is backed by STAB, meaning even with little investment it still has the possibility to 2HKO Chansey. In addition, his special movepool has a large variety of options but most importantly a secondary STAB in Psychic. He does receive a large amount of competition from Infernape, but one of his perks includes having Thunderbolt to better get past bulky Waters.
Victini @ Life Orb
Trait: Victory Star
EVs: 56 Atk / 200 SAtk / 252 Spd
Rash Nature (+SAtk, -SDef)
- Thunderbolt / Energy Ball
- Focus Blast
Thunderbolt / Energy Ball is a toss up. In exchange for hitting Jellicent, Vaporeon, and Politoed for less you have the ability to hit Gastrodon much harder. Tentacruel is already taken care of with STAB Psychic.