Is my Gen 8 Hail team any good?

Question

Hello! I was hoping to Have my hail team reviewed and I was hoping to get insight on this team as well, as I will be using this team for both the Battle Tower in game, and competitively. This is for a doubles format, however I'd love to get insight on how to augment this team for singles as well. Thank you so much!

(As much as possible, I'd like to keep chandelure on the team as it is my favorite pokemon and oddly enough Im trying to fit it in this hail team heh. Although if there are other suggestions for it, its fine! )

Vanilluxe @ Leftovers
Ability: Snow Warning
EVs: 252 HP / 4 Atk / 252 SpA
Quiet Nature
- Blizzard
- Freeze-Dry
- Ice Shard
- Taunt

Froslass (F) @ Focus Sash
Ability: Snow Cloak
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Spikes
- Aurora Veil
- Hail
- Blizzard

Chandelure @ Weakness Policy
Ability: Flash Fire
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Ally Switch
- Flamethrower
- Shadow Ball
- Energy Ball

Beartic @ Assault Vest
Ability: Slush Rush
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Icicle Crash
- Power-Up Punch
- Aqua Jet
- Play Rough

(giga)Lapras @ Leftovers
Ability: Water Absorb
EVs: 252 HP / 252 SpA / 4 SpD
Modest Nature
IVs: 0 Atk
- Freeze-Dry
- Brine
- Thunderbolt
- Perish Song

Beheeyem @ Leftovers
Ability: Synchronize
EVs: 252 HP / 4 SpA / 252 SpD
Sassy Nature
IVs: 0 Atk
- Destiny Bond
- Trick Room
- Psychic
- Cosmic Power

Comments

U may consider changing a move of vanilluxe to flash cannon for wider coverage but it is ok if u don't. Shld change Lapras freeze dry to ice beam or blizzard unless u are that afraid of the likes of seismitoad or Swampert. Flash fire does not really benefit chandelure unless you want it to absorb fire, which most of ur team is weak to, but that's still okay.(I normally will use infiltrator over flash fire) light clay may be preferred for froslass.
Trick room is an issue for beheeyem as in doubles the rest of your pokemon can be considered fast so trick room will not benefit them. In singles if it dies too soon ur team will still be affected. Another issue is that it has no coverage so if the opponent switches in another pokemon with a super effective move against it u will likely switch so again your pokemon will be affected if u set up trick room.
Btw a dark type has high potential to wall your team.