SM OU First decent looking competitive team (dont know what to rlly call it)

[Haggis77]

Tapu Koko @ Life Orb
Ability: Electric Surge
EVs: 252 SpA / 4SpD / 252 Sod
Timid Nature
IVs: 0 Atk
-Thunderbolt
-Volt Switch
-Dazzling Gleam
-Hidden Power [Ice]

Tapu koko is to take out all the water types that used to be giving me trouble and so has volt switch if it doesn't look like he can ohko thunderbolt is a second electric type move if I think I can. The other two moves are for coverage. I originally put an electric type into the team to deal with water types as that used to be a huge threat. I originally had jolteon but was told to change it to tapu koko and it's worked so much better and not just against water types, it has also helped deal with any ground types with hp ice.

Mawile @ Mawilite
Ability: Intimidate
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Iron Head
- Play Rough
- Ice Punch
- Knock Off

Mawile is a build I used in an old team with good coverage and high damage (obviously) I would try to switch her in against a physical attacker so she can lower their attack. I have knock off as usually pokemon will have items so it has an initial power higher than crunch and removes the item. Ice punch was added to deal with flying/grass/ground pokes.

Hoopa-Unbound @ Life Orb
Ability: Magician
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Psychic
- Hidden Power [Ice]
- Shadow Ball
- Gunk Shot

I've got hoopa as he's and old favourite from alpha sapphire and this is the moveset and item he had then. I have him mainly for coverage but as he's got a lot of power, he can take out some problems and with one move change from the direct msg help, he can now sweep decent amounts of teams by himself. Even when he can't, he still deals with some issues.

Gliscor @ Toxic Orb
Ability: Poison Heal
EVs: 252 HP / 184 Def / 72 Spe
Impish Nature
- Protect
- Earthquake
- Roost
- Stealth Rock

Gliscor is a stall build that I found on a forum as I had no idea what actually is good for him. With an improvement that was send directly he is now still for stalling but has stealth rock to both break sashes on flying pokemon and pretty much disable volcarona.

Toxapex @ Black Sludge
Ability: Regenerator
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Scald
- Toxic Spikes
- Recover
- Haze

Toxapex was my favourite from sun and moon, so I had to include her but I changed baleful bunker and venoshock to scald and haze. I also changed the ability from merciless to regenerator because it's overall better and helps if it takes a bad move and wouldn't be able to use recover. The way I use it is I setup toxic spikes then use scald, recover and haze depending on the situation.

Greninja @ Life Orb
Ability: Protean
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Surf
- Hidden Power [Fire]
- Ice Beam
- Gunk Shot

My greninja is a build that I used in pokemon insurgence and I loved using it so I used it here. It's got dark pulse changed for hp fire as steel is a problem for me and fairy and grass when dual typed so gunk shot or ice beam can't take them out can be taken down much more easily.

 

[TPP]

Welcome to Smogon! I'm locking your RMT for the time being as the forum rules require that you provide at least 3 lines of descriptions for each Pokemon to explain their roles. Please read the rules carefully and take a look at Team Showcase to see the level of detail we require. PM me with updated descriptions and I'll be happy to unlock this.

Edit: Unlocked!

 

[miguelb999]

mawile with out sucker punch lol fix that

 

[Raunchyislife]

Just a few suggestions. Having three life orb users with no defogger means that all of those mons can be worn down very quickly with hazards up. I would suggest putting a choice item on one of them or getting a defogger whichever you see fit. Also you have no z-move on any of them which is an absolute must in this meta so you could replace the life orb for one of those.

Imo knock off isn't as good as it used to be so I would switch that to sucker punch. M-Mawile is an incredibly slow mon and it gets easily ohko'd by other offensive threats without sucker punch. Not to mention with no speed investment M-Mawile gets out sped by a lot of its checks. Notably uninvested Magearna, Pelipper, Alomomola, Celesteela, Tyranitar, and Clefable. So I would suggest putting at least 124Spe into it to out speed walls. 164 if you want to also outspeed uninvested Skarmory. Although this cuts into its bulk Mawile is a mon most notably used for wallbreaking, so if it can't do that what do you even use it for lol. Also switching ice punch to thunder punch makes the most sense here. Yeah you won't be able to ohko the bulky grass and ground types but you can cover that weakness with other members. It just makes the most sense because some common checks to mawile are cel/pex/tran and thunder punch destroys all of them especially with terrain up.

If you're using SpAtk Hoopa-U I would always slot in psyshock and dark pulse. Dark pulse hits everything super effectively that shadow ball does except it's STAB so it also hits like a truck on neutral hits. Also mons who resist psychic tend to be heavier on the SpDef side so psyshock just ends up performing better in my experience.

Also unless that Gliscor set is super specific, 244hp evs is the most effective spread for poison heal to give the most back to you.

The last thing I would say is switch out gunk shot on Greninja for u-turn. Having momentum for a team is a powerful thing and you already have mons that can beat the common fairy types in the meta. 2 mons with gunk shot plus M-Mawile is just redundant.