Sweggy FTW (Umbreon) @ Leftovers 
Ability: Synchronize
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Wish
- Foul Play
- Heal Bell
- Protect
Really annoying special tank. Foul Play is main attacking move, good for physical attackers, bit I won with Special Alakazam and Mewtwo using it. Heal Bell and Wish are support moves, to help other pokes to recover HP and status conditions. Synchronize also give status conditions to opponents.
Washing Machine (Rotom-Wash) @ Choice Scarf 
Ability: Levitate
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Hydro Pump
- Will-O-Wisp
- Thunderbolt
- Volt Switch
Special attacker. Good type coverage. Will-O-Wisp to burn and switch. Hydro pump and Thunderbolt are main attacking moves. Volt Switch is used to finish opponent and switch to someone else.
Spiky (Ferrothorn) @ Leftovers 
Ability: Iron Barbs
EVs: 252 HP / 4 Atk / 252 Def
Relaxed Nature
IVs: 0 Spe
- Stealth Rock
- Seed Bomb
- Power Whip
- Gyro Ball
Physical Tank and a bit support with it Stealth Rock. Gyro Ball can do some damage on fast pokes. Power Whip has nice power, but Seed bomb has better accuracy, so I get both of them. It's possible to change Seed Bomb to something else, and item to Rocky Helmet.
Some kind of snail (Gastrodon) @ Sitrus Berry 
Ability: Storm Drain
EVs: 248 HP / 8 Atk / 248 Def / 4 SpA
Relaxed Nature
- Earthquake
- Scald
- Toxic
- Recover
2nd Physical tank. When water types attack Arcanine, I switch to Gastrodon. Sitrus Berry and Recover to recover some damage. Scald has nice chance to burn with not bad power, and I sometimes use Toxic if scald and Earthquake don't do much damage and I do not know who to change.
Who let the dogs (Arcanine) @ Rocky Helmet 
Ability: Intimidate
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Flare Blitz
- Extreme Speed
- Wild Charge
- Close Combat
Bulky Physical Swepper. All moves do nice damage. Extreme speed is used when someone has little HP and is going to switch. I really don't know what item is good on Arcanine so I gave him Rocky Helmet, because of reasons.
Iron-Man (Scizor-Mega) @ Scizorite 
Ability: Technician
EVs: 248 HP / 252 Atk / 4 Def
Adamant Nature
- Swords Dance
- Roost
- Bullet Punch
- U-turn
My Bulky Psychical Sweeper Mega Pokemon. Used for fairy types like Diancie. Bullet punch can do nice damage, Roost is a little healing to help. Swords Dance Build up my attack to do even more damage and U-Turn is used to finish off opponents and switch as in case of Rotom
I hope my team is not bad. I played it a bit in pokemon Showdown and it was pretty good, but I'm still open for suggestions. I hope you can help me, because it's my first team that is not that bad and i want to use it in competitive pokemon battles.
P.S. What item is good for Arcanine like mine? And maybe this team can be used for doubles?
Oh, now I think I would give Arcanine Choice band and Rocky Helmet to Ferrothorn...
