Incredibly ice Fang Gyarados weak, your still infernape weak, no matter how many sp.def evs you give hippowdon, Grass Knot hits Hippowdon for Base 120 power and after a Nasty Plot with a Life Orb boost its not gonna live. Also once you set up Toxic spikes your Hippowdon gets 2hko'd by Heracross.
All your members dont have to be resistant to sandstorm either.
Use
Gliscor@Leftovers
252 HP / 252 DEF / 6 HP
Impish nature
- Ice Fang / Aerial Ace / Stone Edge
- Earthquake
- Roost
- Stealth Rock / Knock Off / Taunt
>> Hippowdon if your gonna be using toxic spikes.
Tentacruel >> Omastar to beat mixape, it also spins for you, something you lack.
Tentacruel@Leftovers
204 HP / 74 DEF / 60 SP.ATT / 172 SP.DEF
Calm nature
- Toxic Spikes
- Rapid Spin
- Hydro pump / Surf
- ice Beam / Hidden power Electric
Needs More cradilly or specs mence and starmie say hi
Cradilly@Leftovers
252 HP / 164 Def / 92 Sp.D
Sassy Nature
- Energy Ball / Toxic
- Stealth Rock / Earthquake
- Rock Slide
- Recover
>>Regirock
Its sp.def goes way over 460 in the sand and it doesnt get raped by specs mences Hydro pump and can completely recover from a Draco meteor unlike regirock. Energy Ball is what a suggest for the first slot due to swampert walling you pretty bad.
Also
Swampert@leftovers
240 HP / 212 DEF / 56 SP.ATT
Relaxed Nature
- Hydro pump
- Hidden power Electric
- ice Beam / Roar
- Earthquake / Hammer Arm
This is modified mixpert is created by me.
Its called a Phazing, Weavile, T-Tar, Gyarados,Skarm/Forry/Weezing, Electivire, Dragon, pimp smacking machine. It covers alot of your weaknesses.
If you go Ice Fang and choose glisor, then Roar can be used over ice beam. If you want this to take on swords dance weavile, then i suggest you shove Hammer Arm to OHKO weavile, as swampy can be 2hko'd after a swords dance Life Orb'd Ice Punch or Night Slash.