Hey Faked. This is a very nice, yet original team & I must say your teambuilding is getting better although your nicknames still need some work :P the cores have lovely synergy and I like Ludirupt a lot. There's not a lot of things that need help, just some more minor suggestions and fixes. Let's get right in!
Granbull
Like it. Unfortunately Granbull is outclassed in an offensive role by Ursaring, but the support set is interesting and I'll have to try it sometime. Only thing I would say is Crunch over Close Combat, the stat drops are not good for a tank, and as Erick pointed out, most Ghost types can set up on your core. EV spread is a little weird too, go 252 HP / 252 Atk / 4 SDef or even 252 HP / 128 Atk / 128 SDef.
Musharna
Cool set, Hidden Power [Fighting] or Signal Beam over Shadow Ball though, as with Granbull's changes you lack the coverage. Being walled by Dark types is not a good idea, you could have switched to Granbull, but you'll want to keep your CM boosts.
Camerupt
Not bad. You'll want Stealth Rocks instead of Hidden Power [Electric] though, as Eelektross and Ludicolo cover Water types already. Roar over Will-O-Wisp wouldn't be bad either, seeing as most physical attackers in NU usually carry Substitute, can OHKO you, or have Guts. I'm not sure whether he's supposed to be a tank or a wall, but an EV spread of 252 HP / 252 SAtk / 4 SDef or 252 HP / 252 SDef / 4 SAtk would be better.
Eelektross
Pretty good. Give him 4 spd, and Flamethrower over Hidden Power [Ice] and you should be good to go. I also prefer Leftovers over Life Orb but it's up to you.
Ludicolo
Well, Ludicolo's 70 base attack just won't cut it unless boosted, so Swords Dance over Leech Seed. Also, Drain Punch and Earthquake cover pretty much the same things, so Seed Bomb instead of Drain Punch for another physical STAB move. That said, I'm not a huge fan of physical Ludicolo unless it's in Rain, so I'd go for the classic SubSeeding staller set that you seem to love TROLOLOLing with xD
Ludicolo (F) @ Leftovers
Trait: Rain Dish
EVs: 60 HP / 196 Def / 252 Spd
Timid Nature (+Spd, -Atk)
- Substitute
- Leech Seed
- Giga Drain / Scald
- Ice Beam / Protect
Shelgon
Well, from what I can see, this team is in dire need of a sweeper. So, to not disrupt the synergy too much, we'll replace Shelgon with Dragonair. He's very bulky with Eviolite, and after one or two DDs, can sweep with his nearly unresisted STAB Outrage. He also has Shed Skin to rid himself of burn or paralysis.
Dragonair (M) @ Eviolite
Trait: Shed Skin
EVs: 80 HP / 252 Atk / 176 Spd
Adamant Nature (+Atk, -SAtk)
- Dragon Dance
- Outrage
- ExtremeSpeed
- Rest
Sooo, I'm done. Hope I helped :D