Hi! It's my first time playing Reborn, and whilst I haven't had too much difficulty with the game, its mostly been from googling the bosses and going to extreme lengths to counter them (I beat Titania with a Gigalith and 5 Excadrills lol). But now I have access to every Pokemon in the game I really want to create an independently powerful team that I can use to beat most bosses (albeit with some minor team changes, trial and error, and a healthy dose of F12). I'm not great at teambuilding but here's what I have so far:
Metagross @ Light Clay
Ability: Clear Body
Impish Nature
252 HP / 252 Sp.Def / 6 Def
Reflect
Light Screen
Ally Switch
Iron Head / Stealth Rock
Azumarill @ Choice Band / Waterium Z
Ability: Huge Power
Adamant Nature
252 HP / 252 Atk / 6 Def
Aqua Jet
Play Rough
Superpower
Liquidation / Belly Drum
Mawile @ Mawilite
Ability: Intimidate
Adamant Nature
252 HP / 252 Atk / 6 Sp.Def
Iron Head
Sucker Punch
Swords Dance
Play Rough / Fire Punch
Naganadel @ Life Orb / Firium Z
Ability: Beast Boost
Timid Nature
252 Sp.Atk / 252 Speed / 6 Def
Nasty Plot
Draco Meteor / Dragon Pulse
Sludge Wave
Flamethrower
Serperior @ Leftovers
Ability: Contrary
Timid Nature
252 HP / 252 Speed / 6 Sp.Atk
Leaf Storm
Glare
HP Fire
Dragon Pulse
As you can probably tell, the general idea is for Metagross to get up 1 or 2 screens and then teleport out into any one of the 4 threatening set up sweepers I have in the back. To be honest I've never played a difficult Pokémon game before so all of this is fairly new to me. I suppose a fire or ground resist would be nice, or some kind of cleric, so I was thinking something like Dragonite or Umbreon might work. I honestly have no clue, please let me know if you have any criticisms or recommendations!
