[REQUEST] Assistance Fixing Weaknesses

[Kehrenok4u2]

Tomorrow I am competing in my first VGC tourney, really looking for any last day changes I should make (items, moves or changing entire pokemon). A few issues I know of is high speed ice moves, speed in general, and a lack of a fighting or psychic presence on my team. All constructive feedback is appreciated.

Klefki @ Light Clay
Ability: Prankster
Level: 50
EVs: 252 HP / 4 Def / 252 SpD
Bold Nature
IVs: 0 Atk
- Reflect
- Light Screen
- Dazzling Gleam
- Foul Play

Garchomp @ Assault Vest
Ability: Rough Skin
Level: 50
EVs: 5 HP / 252 Atk / 252 Spe
Jolly Nature
IVs: 0 SpA
- Dragon Claw
- Earthquake
- Rock Slide
- Fire Fang

Rotom-Wash @ Leftovers
Ability: Levitate
Level: 50
EVs: 240 HP / 188 Def / 80 SpD
Calm Nature
IVs: 0 Atk
- Hydro Pump
- Charge Beam
- Will-O-Wisp
- Protect

Amoonguss @ Black Sludge
Ability: Regenerator
Level: 50
Shiny: Yes
EVs: 252 HP / 4 Def / 252 SpA
Bold Nature
IVs: 0 Atk
- Sludge Bomb
- Giga Drain
- Spore
- Protect


Greninja @ Expert Belt
Ability: Protean
Level: 50
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Dark Pulse
- Ice Beam
- Grass Knot
- Shadow Sneak

Talonflame @ Life Orb
Ability: Gale Wings
Level: 50
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
IVs: 0 SpA
- Brave Bird
- Tailwind
- Protect
- Flare Blitz


Additional team ideas:
1) Sylveon, mega-aggron, swampert, amoonguss, talonflame, greninja.
2) Sylveon, Klefki, Rotom-wash, amoonguss, garchomp, greninja.