My Team

[Conan Pkmn]

Deoxys-S @ Focus Sash
Ability: Pressure
Evs: 4 HP / 252 Def / 252 Spe
Nature: Timid
-Spikes
-Stealth Rock
-Magic Coat
-Taunt

Mewtwo @ Life Orb
Ability: Pressure
Evs: 4 HP / 252 SpA / 252 Spe
Nature: Timid
-Psystrike
-Shadow Ball
-Ice Beam
-Aura Sphere

Kyogre @ Choice Scarf
Ability: Drizzle
Evs: 4 HP / 252 SpA / 252 Spe
Nature: Timid
-Water Spout
-Thunder
-Surf
-Ice Beam

Arceus (Normal) @ Lum Berry
Ability: Multitype
Evs: 132 HP / 252 Atk / 124 Spe
Nature: Adamant
-Extremespeed
-Shadow Claw
-Swords Dance
-Overheat

Giratina-O
Ability: Levitate
Evs: 248 Atk / 252 SpA / Spe 8
Nature: Naughty
-Will O Wisp
-Dragon Tail
-Draco Meteor
-Shadow Sneak

Dialga @ Life Orb
Ability: Pressure
Evs: 4 HP / 252 SpA / 252 Spe
Nature: Hasty
-Dragon Pulse
-Thunder
-Aura Sphere
-Earth Power

I'm new to competitive battling, this is my first team, almost all of the moves, items, etc., I got those from Smogon.

I've been doing great with this team but am having troubles with teams running Smeargle with Shell Smash and Spore, once it baton passes to Dialga I almost always lose, So are there any changes I need to make to counter that ? Also, I don't mind replacing Dialga with some other Pokemon.

Please help me with my team.

 

[Tomahawk]

You have to expand your descriptions, explain why you picked every Pokemon, what it does for your team, etc. Also, please read the rules next time before you post a RMT.