Is anyone able to help me complete my team?

[PlatinumDude]

Is there any other moves you recommend me to use on medicham tho?

I wouldn't recommend using High Jump Kick and Drain Punch together, tbh:
-High Jump Kick
-Fire Punch
-Zen Headbutt/Ice Punch
-Substitute/Bullet Punch
Nature: Adamant/Jolly
EVs: 252 Atk/4 Def/252 Spe (putting 4 EVs into HP makes Medicham's HP even, making it KO itself if High Jump Kick misses twice from full health)
Item: Medichamite
Ability: Pure Power

Basically the same set you have, except that you have 3 more options.

 

[WishCookie]

I wouldn't recommend using High Jump Kick and Drain Punch together, tbh:
-High Jump Kick
-Fire Punch
-Zen Headbutt/Ice Punch
-Substitute/Bullet Punch
Nature: Adamant/Jolly
EVs: 252 Atk/4 Def/252 Spe (putting 4 EVs into HP makes Medicham's HP even, making it KO itself if High Jump Kick misses twice from full health)
Item: Medichamite
Ability: Pure Power

Basically the same set you have, except that you have 3 more options.

Well I wouldn't use Drain punch and High Jump Kick together either. I just don't know if I should use substite or Bullet punch tbh.