I can see some problems with your team, including the fact that you only have two Protect users. In Doubles, Protect is pretty much essential for every non-Assault Vest or Choice user. I also see that most of your team is supposed to work in Trick Room, whereas Landorus and Rillaboom seem to be running fairly fast sets. If you want to make a Trick Room team, consider using a slower Intimidator like Incineroar. But with that, I'll go over some improvements with the Pokemon and its sets.
Shuckle
Your Shuckle set is almost complete Taunt Bait, so Mental Herb would be a good replacement item. I don't really understand Safety Goggles, since Follow Me is just as used as Rage Powder. On this set, I think it could actually do more than Protect, like Encore under Trick Room being able to force a setup-sweeper to switch out. I also want to ask, what is usually your main target of Guard Split? I'm assuming it's Snorlax but I could be wrong.
Snorlax
I don't know that much about Doubles, but the Smogon Snorlax sets for VGC17 and VGC18, which are basically Doubles OU but everything is Level 50, both involve Gluttony Snorlax with a berry. It is a more reliable recovery than rest, especially with Recycle. This is Gen 8, so these berries only restore 1/3 health, but it's still better than Rest without Sleep Talk. The VGC18 Masters Division Champion ran a Belly Drum Snorlax, with Belly Drum, Frustration, Recycle, and Protect with Gluttony and an Aguav Berry. Anyway, if you're going to keep the Curse set, consider getting Gluttony and something like a Wiki Berry and Recycle instead of Rest, and maybe Return instead of Double-Edge to avoid taking big chunks of health while dealing Damage. Protect over Heat Crash is also an option, but you may need the extra Coverage.
Landorus
Like I said before, Landorus is a rather fast Pokemon and doesn't work very well under Trick Room. Your team also doesn't have many Ground-immune Pokemon, so Earthquake is pretty bad. Stealth Rock is also pretty bad in Doubles since there is not as much switching as in Singles. Incineroar can do everything a lot better, providing Fake Outs, U-turns, and STAB Snarls. Try my variation of this set:
Incineroar @ Assault Vest (if non-Protect) / Sitrus Berry
Ability: Intimidate
EVs: 252 HP / 196 Atk / 60 SpD
Brave / Adamant Nature
IVs: 0 Spe
- Fake Out
- Flare Blitz
- U-turn / Protect
- Knock Off / Snarl
Dusclops
This seems fine to me, but Taunt could be replaced with Helping Hand for extra support.
Torkoal
I would run a Quiet Nature instead of Modest since it's a Trick Room team. Earth Power is nice coverage, but I would maybe run Heat Wave over it for late-game attacking when Eruption has less power.
Rillaboom
If you add Knock Off Incineroar, Knock Off Rillaboom is not as useful anymore. Consider High Horsepower for some extra coverage if you decide to remove Earth Power on Torkoal. If you're just making the team a Trick Room team, don't invest in Speed, and since you'd already be pretty fast under Trick Room maybe replace Grassy Glide with Wood Hammer, or if you're using it with Torkoal, Solar Blade seems good.
So yeah, that was what I thought of this team. Most of it is pretty good, but some members still need a little bit of work. Hope I helped!
