Item: Rock Helmet. Ability: Intimidate. Moves: Stealth Rock, Iron Head, Knock Off, Play Rough. Its a Fairy, so nothing to explain. Its the Stealth Rock lead.
Item: Leftovers. Moves: Thunder Wave, Dazzling Gleam, Flamethrower, Psychic. Another Fairy. This one paralyzes and hits with offensive moves.
Item: Assault Vest. Ability: Huge Power. Moves: Waterfall, Play Rough, Ice Punch, Aqua Jet. Another Fairy. After Wigglytuff paralyzes something and dies, Azumarill runs through the opposing team, tanking hits and hitting very hard.
Item: White Herb. Moves: Close Combat, Psycho Cut, Charm, Leaf Blade. This one is not a Fairy, but his whole family is, as well as Iron Valiant. To show how it has a Fairy reference, it has Charm in the moveset, which is a Fairy move.
Item: Life Orb. Moves: Moonblast, Psychic, Thunderbolt, Focus Blast. Back to actual Fairies. This could have been the Ace and probably many people will choose it as such. Even without being the ace, Gardevoir is a very strong Pokemon and blows holes in the challenger's teams before the actual ace appears.
Item: Altarianite. Moves: Dragon Dance, Body Slam, Earthquake, Fire Blast. In a classic Paldean tradition, the ace Mon is not a Fairy type but becomes one during the battle. Remember Winona's Altaria in Emerald? This one is an upgraded version of it, it uses Dragon Dance and cleans.
is the headline act that performs during the peak evening hours. It's a little pampered as a result of being a superstar, as "by singing melodies in its crystal-clear voice, this Pokémon makes its listeners experience dreamy wonderment." As you only battle me in the post-game I'm megaing this guy, no reason not to. This is a Fairy-Type, doesn't really need justification.
dances while Altaria sings creating a truly magnificent spectacle. Later on when the night shift comes, it instead works as a waitress, tending to the needs of customers using its emotional intelligence. This is a Fairy-Type, doesn't really need justification.
Once Altaria has finished its performance and the night-time clientele comes in, Wigglytuff takes over the singing duties. Wigglytuff sets a relaxed atmosphere that makes the lounge perfect after a long day at work 
provides the instrumentation for the performances, since it can produce several different tones and notes by echoing the wind that passes through its body. As for the justification why this is a Fairy-Type... why is it a Psychic-Type? 
Looking at its lore to try and make a Fairy-Type connection has made me realise this should just be a Normal-Type Pokémon lol. Literally its only power is sound. So if it can be Psychic-Type it can also be on a Fairy-Type theme where it fits thematically. It's also only encountered in Fairy Land in Pokémon Rumble World. Checkmate.
is just the lounge cat. All the best lounges / pubs etc. have a pet and this one has a cat. Delcatty and Skitty learn Normal- and Fairy-Type moves by levelup (and Payback and Wake-Up Slap) in gen 6, in modern gens Wake-Up Slap got cut so its Fairy-Type link is even stronger. If I were doing the standard the 5 Fairy-Type Pokémon + one, my one would be Delcatty. It's in the Fairy Egg Group, has that connection to night time that is good enough for the rabbits... honestly if Fairy-Type were made before Normalize was I'm 100% sure Delcatty would have gotten retyped.
Finally, Azumarill provides the bubbles for the hookahs. It was this or this lounge actually also having a pool that Azumarill works as the lifeguard in. Or it provides water to the guests but I'm not entirely sure drinking rabbit water is advisable. I think I made the right choice adding hookahs. (Azumarill can make bubbles at will).
Yeah, I came very close to skipping Alteria because if I'm not using it's Mega then it's not required, but it was such a fitting choice for a type that relies on cuteness that I included it anyway. I like both of your final 2, Delcatty is a clear fit and I hadn't thought of Gorebyss but it's another good option.
Personally I would just err on not including anything not in the Hoenn Dex for ORAS, because if we make an exception for Togekiss then we could just as easily make exceptions for all the other National Dex pokemon that become available once you beat Groudon/Kyogre. not even just the mirage islands, but the dex nav now being able to show you Nat Dex pokemon.ORAS Hoenn with Fairy-Types, huh? Interesting. I definitely think we can work with this. There's a Pokémon I have a question about for ORAS in particular, thanks to the unique nature of the Pokémon still existing during Generation 3, but not being added as a gift Pokémon until the remakes, which by coincidence were during the same generation that made this thing a Fairy-Type.
Yes, I know Togekiss is a Gen 4 evolution and not some kind of Gen 3 evolution (or a Mega Evolution for Togetic, in that regard). Yes, I know none of the Togepi line is technically a part of the ORAS Hoenn regional PokéDex. But in my opinion, it should have been. For those who weren't aware of this, you can actually get a Togepi egg from the same NPC that gives you the usual Wynaut egg once you've captured or defeated Groudon/Kyogre and obtained the National PokéDex. The catch is, in ORAS specifically, this technically isn't dedicated postgame content, much like how the Eon Flute and Soaring isn't technically postgame content either. Togekiss feels similar to a Gallade or a Froslass in the context of these remakes, both of which are allowed for this competition, so what do you guys think about Togekiss being available too? Again, this would only be for ORAS, because this Togepi egg isn't a thing in the original Ruby, Sapphire, and Emerald games on the GBA (instead having a Togepi egg in the FireRed & LeafGreen postgame).
The team came together much better for me with one extra change: this is a doubles team. With Trick Room.
Gardevoir @ Expert Belt
Ability: Telepathy
- Trick Room
- Dazzling Gleam
- Psyshock
- Protect
It's the only Hoenn Fairy that actually learns trick room. This is just the regular gen 6 doubles set with the mega stone reallocated elsewhere.
Azumarill @ Sitrus Berry
Ability: Huge Power
- Aqua Jet
- Knock Off
- Belly Drum
- Protect
Azumarill is the more fixed mon that shows off an idea I end up thinking a lot of for Fairy and Fairy-adjacent teams: deceptively high physical power despite low/mid stats. Obviously, Tinkaton isn't here to complete the trifecta, but we have another Huge Power mon coming.
Jigglypuff @ Eviolite
Ability: Friend Guard
- Protect
- Knock Off
- Helping Hand
- Seismic Toss
I couldn't really figure out what to do with Wigglytuff, which is where this became a doubles team. I was considering Trick Room even in singles, but access to Friend Guard really sold me on going doubles instead.
Mawile-Mega @ Mawilite
Ability: Intimidate
- Play Rough
- Iron Head
- Sucker Punch
- Rock Slide
My favourite Fairy-type. I like the dynamic it has with its Mega, dropping its act as the Deceiver Pokemon and just smashing the opposition. Sorry Altaria, there isn't room for a second Mega.
Lunatone @ Lum Berry
Ability: Levitate
- Trick Room
- Moonblast
- Psyshock
- Helping Hand
Felt I needed a second TR setter. Lunatone was chosen over other options due to the minor association between Fairy types and the moon (with both the Moon Stone and Moonblast leaning towards that type).
Wigglytuff @ Choice Specs
Ability: Competitive
- Hyper Voice
- Dazzling Gleam
- Fire Blast
- Focus Blast
Wanted a Special hammer to complement Azumarill and Mawile both being physical. Wigglytuff might be poorly suited to this, but I decided it would be funny to still have the same number of Fairy types as other submissions despite not using Altaria-mega.
ORAS Hoenn with Fairy-Types, huh? Interesting. I definitely think we can work with this. There's a Pokémon I have a question about for ORAS in particular, thanks to the unique nature of the Pokémon still existing during Generation 3, but not being added as a gift Pokémon until the remakes, which by coincidence were during the same generation that made this thing a Fairy-Type.
Yes, I know Togekiss is a Gen 4 evolution and not some kind of Gen 3 evolution (or a Mega Evolution for Togetic, in that regard). Yes, I know none of the Togepi line is technically a part of the ORAS Hoenn regional PokéDex. But in my opinion, it should have been. For those who weren't aware of this, you can actually get a Togepi egg from the same NPC that gives you the usual Wynaut egg once you've captured or defeated Groudon/Kyogre and obtained the National PokéDex. The catch is, in ORAS specifically, this technically isn't dedicated postgame content, much like how the Eon Flute and Soaring isn't technically postgame content either. Togekiss feels similar to a Gallade or a Froslass in the context of these remakes, both of which are allowed for this competition, so what do you guys think about Togekiss being available too? Again, this would only be for ORAS, because this Togepi egg isn't a thing in the original Ruby, Sapphire, and Emerald games on the GBA (instead having a Togepi egg in the FireRed & LeafGreen postgame).
I would have to agree with that notion. I just wanted to make sure before I made a team for this, just to be safe, you know?
I honestly didn't even consider going for a cuteness theme, because none of the Fairy mons (at any evolutionary stage) actually matched what I think of as cute. Amusingly, while I was never thinking about Goerbyss, Clamperl was in contention because the special attack boost from Deep Sea Tooth is no joke. I expect I'll be holding onto my own cute team until we get Steel, Bug, or Ghost.
I wont use you is going to be the Mega choice, because it looks ferocious enough. is for the remaining fairy type for my team and you are too cute to be on my team
, it this was RSE, I could have picked 
? nope, I'll pick 
instead because its more ferocious-looking and it is
Growl can't target allies in doubles, since it affects both enemies. Icy Wind could work as another support move if you're set on giving up the best available attacker.
Oh oops. I don't really see any other good moves for that role, so I'd just replace it with Iron Defense to increase its bulk I suppose. It's already gimmicky anyway so I don't think Icy Wind would be worth it at that point due to it also damaging Wigglytuff.
Icy wind also doesn't hit the ally, its utility would be in slowing down the opponent so altaria isn't the only source of speed control.
Oh, I thought you meant regular Mawile. I didn't use Mega Mawile because I like Mega Altaria (and Altaria in general) a lot
