Help Seeking Advice

[XacerB8]

Hi everyone!
I played VGC very seriously in the 2014-2015 season and took a break cause the format last year was crap.
Anyhoo, I'm back with Sun and Moon, but I'd appreciate advice in certain places to see if there is anything I could do to improve my game further. For instance, in these replays, would you have made better decisions? If so, please comment - I would appreciate the advice!

Replays:
http://replay.pokemonshowdown.com/gen7vgc2017-501886732
http://replay.pokemonshowdown.com/gen7vgc2017-501881168
http://replay.pokemonshowdown.com/gen7vgc2017-502963351

XacerB8

 

[Equinox]

What you're asking for is broad help, perhaps it'd be good to provide your team as well, as knowing the sets and items helps leaps and bounds more than it does to merely watch two replays

 

[XacerB8]

Here you go Equinox :

Tapu Bulu @ Miracle Seed
Ability: Grassy Surge
Level: 50
EVs: 244 HP / 116 Atk / 140 Def / 4 SpD / 4 Spe
Adamant Nature
- Wood Hammer
- Leech Seed
- Substitute
- Protect

Celesteela @ Leftovers
Ability: Beast Boost
Level: 50
EVs: 228 HP / 44 Atk / 116 Def / 116 SpD / 4 Spe
Adamant Nature
- Heavy Slam
- Substitute
- Leech Seed
- Protect

Hariyama @ Flame Orb
Ability: Guts
Level: 50
EVs: 28 HP / 252 Atk / 108 Def / 116 SpD
Brave Nature
- Fake Out
- Close Combat
- Knock Off
- Protect

Muk-Alola @ Life Orb
Ability: Poison Touch
Level: 50
EVs: 140 HP / 252 Atk / 44 Def / 52 SpD / 20 Spe
Adamant Nature
- Poison Jab
- Knock Off
- Shadow Sneak
- Protect

Araquanid @ Normalium Z
Ability: Water Bubble
Level: 50
EVs: 252 HP / 112 Atk / 68 Def / 76 SpD
Adamant Nature
- Liquidation
- Lunge
- Stockpile
- Protect

Porygon2 @ Eviolite
Ability: Download
Level: 50
EVs: 252 HP / 156 Def / 36 SpA / 60 SpD
Quiet Nature
IVs: 0 Atk / 0 Spe
- Ice Beam
- Thunderbolt
- Recover
- Trick Room



Considering switching Tapu Bulu to a Grassium Z set with Horn Leech over Wood Hammer