What's missing on this team of gen 9( doubles OU )

Question

I made this team based on expanding force armarougue and indeed there very strong together but I'm a insecure af, I want some feedback on the team too if y'all could do this I would be so grateful, so let's go:

Indeedee-F @ Psychic Seed
Ability: Psychic Surge
Tera Type: Fairy
EVs: 252 HP / 252 Def / 4 SpD
IVs: 0 Atk
- Dazzling Gleam
- Follow Me
- Trick Room
- Protect
Indeed to set trick room and psychic terrain for armarougue terá fairy to survive the dark type attacks

Armarouge @ Weakness Policy
Ability: Flash Fire
Tera Type: Grass
EVs: 156 HP / 252 SpA / 100 Spe
Modest Nature
IVs: 0 Atk
- Expanding Force
- Wide Guard
- Energy Ball
- Armor Cannon
Armarougue expanding force I made him tera grass to deal with dondozo and tera grass volcarona as well, why a weaknesses policy on him? You'll see right now

Dragapult @ Choice Specs
Ability: Infiltrator
Tera Type: Dragon
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Draco Meteor
- Thunderbolt
- Shadow Ball
- U-turn
Specs dragapult I always wanted to use this set on him but I never got the right team for him, in this team he can u turn on armarougue setting up the weakness policy, but I'm still deciding if it's better put flash fire or weak armor in this case, I'm unsure to put thunderbolt or fire blast, dondozo scares me a lot lol

Tyranitar @ Choice Scarf
Ability: Sand Stream
Tera Type: Rock
EVs: 32 HP / 252 Atk / 4 Def / 220 Spe
Jolly Nature
- Rock Slide
- Brick Break
- Dragon Claw
- Crunch
Scarf rocks slide tytar, I'm putting him here over garchomp because I don't want to.many dragons on one team, his job is to get a lot of flinches with stab rock slide, against tailwind teams

Sylveon @ Life Orb
Ability: Pixilate
Tera Type: Fairy
EVs: 252 HP / 4 Def / 252 SpA
Serious Nature
IVs: 0 Atk
- Hyper Voice
- Protect
- Wish
- Calm Mind
This one is the most recent member I wanted a bulky offense that I could switch into, and with calm mind to up her sp def, and wish to keep her and the team alive... I guess*

There is one place for one last pokemon but I can't decide with one I can put in here, please help me I'm lost now

Comments

Specs Miraidon could help by setting up electric terrain while providing good synergy with dragapult by boosting both Mirai's own electric type attacks and Dragapult's thunderbolt with, if this is what you use Mirai can run Draco Meteor, Dazzling Gleam, Electro Drift and U-Turn

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Miraidon isn't allowed in Gen 9 OU Doubles

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Armarouge's ability can be weak Armor and instead of
Weakness policy you should give it focus sash to improve the rouge

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Armarouge is using more of a Trick Room set so Weak Armor isn't that great. With Flash Fire and Tera Grass, you get rid of your Fire weakness too. I'd recommend for Armarouge to run Quiet with 0 Spe and Atk since this is Trick Room.