Your team needs moveset help which I will give to you:
Emboar-
Flare Blitz-STAB
Head Smash/Stone Edge-Flying types
Wild Charge-Water Types
Earthquake-Coverage
Bisharp-
Iron Head-STAB
Night Slash-STAB
Stone Edge-Fire types
Swords Dance-Raise Attack
Zoroark-
Night Daze-STAB
Focus Blast-Coverage
Flamethrower-Bug types
U-Turn-switch out
Thundurus-
Nasty Plot-raise SP Attack
T-Bolt-STAB
Dark Pulse-coverage
Focus Blast-Coverage
I'd also suggest adding two extra Pokemon in your team. Might I suggest Braviary and Cofagrigus:
Braviary-
Thrash-STAB
Aerial Ace/Brave Bird-STAB
Rock Slide/U-Turn-coverage
Hone Claws-raise attack and accuracy
Cofagrigus-
Hex-STAB
Will-o-Wisp-Burn and paired with Hex, amazing
Energy Ball-Coverage
HP Bug-for Dark types