Please rate this beginner's team

Question

Hello everyone!

I just joined VGC and built my first team, I'd like to know how good my team is, could somebody help me with this?

Landorus-Therian @ Groundium Z
Ability: Intimidate
Shiny: Yes
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Earthquake
- Rock Slide
- Knock Off
- Protect

Need nothing to say, this is the most common poke.

Tapu Koko @ Magnet
Ability: Electric Surge
Shiny: Yes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Thunderbolt
- U-turn
- Hidden Power [Ice]
- Taunt / Volt Switch

Offensive check to Water-types.

Cresselia @ Iapapa Berry
Ability: Levitate
EVs: 252 HP / 4 Def / 252 SpA
Modest Nature
IVs: 0 Atk
- Trick Room
- Psychic
- Icy Wind
- Helping Hand

Speed control.

Charizard @ Charizardite Y
Ability: Blaze
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Heat Wave
- Solar Beam
- Overheat
- Protect

Kartana @ Focus Sash
Ability: Beast Boost
Shiny: Yes
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Leaf Blade
- Sacred Sword
- Tailwind
- Detect

Stakataka @ Choice Band
Ability: Beast Boost
Shiny: Yes
EVs: 252 HP / 252 Atk / 4 SpD
Lonely Nature
IVs: 14 Def / 0 Spe
- Earthquake
- Gyro Ball
- Iron Head
- Rock Slide

How should I modify this team? Thanks!

Comments

For starters, you should give tapu Koko electric seed or a choice scarf. If you choose choice scarf then have volt switch not taunt and dazzling gleam not U-turn.

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Give Landorus an assault vest for more bulk. Replace its protect with U-turn to reduce the need to predict switches. Give Tapu Koko an electrium Z for more power. Replace U-turn and taunt with protect because protect and dazzling gleam for STAB. Give Stakataka a life orb to let it switch between attacks. Replace its iron head and rock slide with protect because protect and trick room to let it move first.

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No, you need Choice Specs, nothing that outspeeds him is allowed in VGC or aren't used often and have low attack anyways

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It needs an electrium Z so it can alternate between attacking and using protect.

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The Trick Room element on this team is very poorly executed. Only two of yours members benefit from it, and the rest have maxed speed. In your team's current state, TR is going to hurt you a lot more than it'll help you.

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Dat tru tho