Need help updating/rebuilding team

[beanholestatus]

I battle casually on battle spot and have been running the following:

Charizard holding charizardinite y
Calm nature
-Fly
-Solar beam
-Flamethrower
-Flare Blitz

Rotom-W-lum berry
Modest nature
-Hydro Pump
-Thunderwave
-Volt Switch
-Thunderbolt


Shiny Aegislash holding leftover
Adamant Nature
-kings shield
-swords dance
-sacred sword


Tyranitar holding soft sand
Relaxed Nature Sandstorm ability
-Crunch
-Rock Slide
-Earthquake
-Stone Edge

I also have an Infernape with choice band to handle Kangaskhan, this team is pretty basic I made it in Y a while back but I would like to change it up. I was thinking a Mawile, Dragonite, Politoed(with drizzle), and Aegislash combo, maybe even Hawlucha. Anyone have any suggestions?

 

[PlatinumDude]

EVs for each Pokemon would be appreciated. I'm afraid you'll need to re-breed some of your Pokemon

Charizard Y generally should run special attacks only because of its significantly higher Special Attack than Attack (though some go mixed with Flare Blitz and/or Earthquake to lure in Chansey, Blissey and Heatran):
-Fire Blast/Flamethrower
-Solar Beam
-Focus Blast
-Dragon Pulse/Roost
Nature: Timid/Modest
EVs: 4 Def/252 SAtk/252 Spe
Item: Charizardite Y

Will-o-Wisp has better utility than Thunderbolt because it lets Wash Rotom cripple physical attackers:
-Volt Switch
-Hydro Pump
-Will-o-Wisp
-Pain Split/Rest
Nature: Bold
EVs: 252 HP/252 Def/4 SDef
Item: Leftovers/Chesto Berry/Sitrus Berry

Running Swords Dance and King's Shield at once makes Aegislash easily walled by physical walls like Hippowdon and crippled by status, especially burn. It's generally better to use specially-based Aegislash:
-Shadow Ball
-Flash Cannon/Sacred Sword
-Shadow Sneak
-King's Shield
Nature: Quiet
EVs: 252 HP/252 SAtk/4 SDef
Item: Weakness Policy

or
-Substitute
-Toxic
-King's Shield
-Shadow Ball/Flash Cannon
Nature: Modest/Timid
EVs: 252 HP/252 SAtk (Modest) or 252 HP/4 SAtk/252 Spe (Timid)
Item: Leftovers/Air Balloon

or
-Iron Head/Shadow Claw
-Shadow Sneak
-Sacred Sword
-Swords Dance/King's Shield
Nature: Adamant/Brave
EVs: 252 HP/252 Atk/4 SDef
Item: Life Orb/Weakness Policy

Blaziken is a better option than Infernape because of its stronger power and ability to outspeed more threats than just Mega Kangaskhan with Speed Boost. Be aware of the type overlap with Charizard, though. Just remember that neither Blaziken nor Infernape can switch in directly to Kangaskhan because of their frailty; they should only be brought in after a teammate is KOed:
-Flare Blitz
-High Jump Kick/Superpower
-Knock Off/Swords Dance/Stone Edge/Thunder Punch
-Protect
Nature: Adamant
EVs: 252 Atk/4 SDef/252 Spe
Item: Blazikenite/Life Orb
Ability: Speed Boost

or
-Overheat
-High Jump Kick/Superpower
-Hidden Power (Ice)
-Protect
Nature: Naive
EVs: 52 Atk/244 SAtk/112 Spe
Item: Life Orb
Ability: Speed Boost

You can also use bulky Rocky Helmet users on the team to help deal with Kangaskhan. Examples are Cresselia and Garchomp:

Cresselia:
-Psychic/Lunar Dance
-Ice Beam
-Moonlight
-Lunar Dance/Thunder Wave/Trick Room/Toxic
Nature: Bold
EVs: 252 HP/252 Def/4 SDef
Item: Rocky Helmet

Garchomp:
-Outrage
-Earthquake
-Stealth Rock/Swords Dance
-Rock Tomb/Dragon Claw/Fire Blast
Nature: Jolly/Naive
EVs: 4 HP/252 Atk/252 Spe
Item: Rocky Helmet
Ability: Rough Skin

 

[beanholestatus]

Awesome thank you, and yeah when I bred them(almost two years ago) I wasn't that savvy on natures and by the time I figured it all out I figured they were good enough for the time being. Since I need to rebreed anyway I was also considering changing my 'mons as well. But thanks again for your input.