First off, not sure if this is the spot for Battle Spot Singles, but I'm here anyways.
Anyway, I've got a few mons I know I want to use, just need some help filling out the team. So far I've got Cloyster, Mega Lucario, and Mimikyu, and I've been looking at Celesteela, Koko, and maybe a second mega like Gyarados or Salamence. Not quite sure on the metagame and how it'll change now that Bank's out.
Movesets for each Pokemon would be great.
Anyway, Tapu Koko is #1 in usage in Battle Spot singles, while Celesteela is one of the better Ultra Beasts to use:
Tapu Koko:
-Thunderbolt
-Dazzling Gleam/Hidden Power (Ice)
-Volt Switch/U-turn
-Hidden Power (Fire/Ground)/Brave Bird/Grass Knot
Nature: Timid/Naive/Hasty
EVs: 4 HP/252 SAtk/252 Spe
Item: Choice Scarf/Choice Specs
or
-Calm Mind
-Thunderbolt
-Dazzling Gleam/Hidden Power (Ice)
-Grass Knot/Hidden Power (Fire/Ground)/Roost
Nature: Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Electrium Z/Life Orb/Leftovers
or
-Wild Charge
-Dazzling Gleam/Hidden Power (Ice)
-Brave Bird
-U-turn
Nature: Hasty/Naive
EVs: 252 Atk/4 SAtk/252 Spe
Item: Life Orb/Magnet/Zap Plate/Electrium Z
Celesteela:
-Heavy Slam
-Earthquake/Flamethrower/Substitute/Protect
-Leech Seed
-Substitute/Protect
Nature: Impish/Relaxed/Careful/Sassy
EVs: 252 HP/252 Def/4 Spe or 252 HP/252 SDef/4 Spe
Item: Leftovers/Rocky Helmet
Cloyster:
-Shell Smash
-Icicle Spear
-Rock Blast
-Ice Shard/Hydro Pump
Nature: Jolly/Adamant/Naughty/Naive
EVs: 252 Atk/4 Def/252 Spe
Item: Focus Sash/King's Rock
Ability: Skill Link
I'd say that Salamence is the better secondary Mega, IMO. It's seriously that good:
-Dragon Dance
-Return/Double-Edge
-Earthquake
-Fire Blast/Draco Meteor/Roost/Substitute
Nature: Naughty/Naive/Jolly/Adamant
EVs: 252 Atk/4 SAtk/252 Spe
Item: Salamencite
Ability: Intimidate
or
-Substitute
-Toxic
-Roost
-Return/Double-Edge
Nature: Jolly
EVs: 252 HP/4 Atk/252 Spe
Item: Salamencite
Ability: Intimidate
or
-Draco Meteor
-Double-Edge
-Fire Blast
-Hyper Voice/Roost/Earthquake
Nature: Naive
EVs: 4 Atk/252 SAtk/252 Spe
Item: Salamencite
Ability: Intimidate
Lucario:
-Close Combat
-Iron Tail
-Extreme Speed
-Swords Dance/Ice Punch
Nature: Jolly
EVs: 252 Atk/4 Def/252 Spe
Item: Lucarionite
or
-Nasty Plot
-Aura Sphere/Focus Blast
-Flash Cannon
-Dark Pulse/Shadow Ball/Vacuum Wave
Nature: Timid
EVs: 252 SAtk/4 SDef/252 Spe
Item: Lucarionite
Ability: Inner Focus/Steadfast
Mimikyu:
-Swords Dance
-Shadow Claw
-Play Rough
-Shadow Sneak
Nature: Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Ghostium Z/Life Orb/Lum Berry
Battle Spot usage is here:
https://boe2.github.io/bsus.html