Need Help Choosing Last Pokemon

[Boklau Broly]

Any help would be nice or if you think i should change anything pokemon just say.

HAXORUS-(Mold Breaker)-(CAREFUL)= Earthquake, Dragon Claw, Brick Break, Shadow Claw
EV'S- Atk-56 Def-200 Spec Def-252

MACHAMP-(No Guard)-(ADAMANT)= Thunder Punch, Dynamic Punch, Stone Edge, Earthquake
EV'S- Def-252 Spec Def-252

Skarmory- (Sturdy)-(Impish)= Toxic, Stealth Rock, Spikes, Rock Slide
Hp-252 Def-252 Atk-4

EMPOLEON-(Torrent)-(RELAXED )= Ice Beam, Surf, Flash Cannon, Roar
EV'S- Def-200 Spec Atk-108 Spec Def-200

CHANDELURE-(Flame Body)-(BOLD)= Calm Mind, Flamethrower, Energy Ball, Shadow Ball
EV'S- HP-100 Def-156 Spec Def-200

 

[PlatinumDude]

Haxorus is better off outright attacking:
-Dragon Dance/Swords Dance
-Outrage
-Earthquake
-Taunt/Dragon Claw/Dual Chop/Brick Break
Nature: Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Life Orb
Ability: Mold Breaker

Also, Machamp needs to be your lead:
-DynamicPunch
-Stone Edge/Ice Punch
-Payback
-Bullet Punch
Nature: Adamant
EVs: 240 HP/248 Atk/16 SDef/4 Spe
Item: Lum Berry
Ability: No Guard

Skarmory is better with:
-Spikes/Stealth Rock
-Whirlwind
-Roost
-Brave Bird/Drill Peck
Nature: Impish
EVs: 252 HP/252 Def/4 SDef
Item: Leftovers/Shed Shell
Ability: Sturdy

Empoleon is better with this, since it's more tailored towards defensive play:
-Scald
-Roar/Stealth Rock
-Protect
-Ice Beam/Grass Knot
Nature: Calm
EVs: 252 HP/252 SDef/4 Spe
Item: Leftovers
Ability: Torrent

Chandelure is better with Timid with 4 HP/252 SAtk/252 Spe. You can also consider Substitute or Hidden Power (Ground) over Energy Ball.

Edit: use Zoroark as your 6th Pokemon, but you'll have to move Chandelure to the last slot so that Illusion will activate:
-Nasty Plot
-Dark Pulse/Night Daze
-Focus Blast/Grass Knot
-Flamethrower/Grass Knot
Nature: Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Life Orb

 

[Pichu_fan]

Same as PDude,But if you need a Zoura,I got one for you :)

 

[ThrowMeAPeanut]

just a thought, have you considered agility on empoleon?

without a recovery move he doesnt make a great wall, but with with his resistances he could easily up his speed and pull off a late game sweep once your spikes and heavy hitters have put serious dents in everything

 

[Hikamaru]

Any help would be nice or if you think i should change anything pokemon just say.

HAXORUS-(Mold Breaker)-(CAREFUL)= Earthquake, Dragon Claw, Brick Break, Shadow Claw
EV'S- Atk-56 Def-200 Spec Def-252

MACHAMP-(No Guard)-(ADAMANT)= Thunder Punch, Dynamic Punch, Stone Edge, Earthquake
EV'S- Def-252 Spec Def-252

Skarmory- (Sturdy)-(Impish)= Toxic, Stealth Rock, Spikes, Rock Slide
Hp-252 Def-252 Atk-4

EMPOLEON-(Torrent)-(RELAXED )= Ice Beam, Surf, Flash Cannon, Roar
EV'S- Def-200 Spec Atk-108 Spec Def-200

CHANDELURE-(Flame Body)-(BOLD)= Calm Mind, Flamethrower, Energy Ball, Shadow Ball
EV'S- HP-100 Def-156 Spec Def-200

I could recommend this site: https://pokemon.marriland.com/black_white/team_builder

I used this to construct my BW Team. You should as well.

On opinion of 6th Team Member. I think you may need a Psychic-type. Try Musharna, Reuniclus (if your game is White), Beheeyem or Gothitelle (if your game is Black)

I looked at your moveset carefully, but it's all up to you. For my Black Team I chose Gothitelle.