Need Suggestions

[Garrett23]

Hey I need help with a team. it goes
- Garchomp
- Blaziken
- Venusaur
- Rhyperior
- Alakazam
- Dusknoir

Garchomp Sweeps, Blaziken takes out ice types who try to mess with Garchomp, and has some sweeping duties, venusaur enjoys putting opponents to sleep, hitting with leech seed, then using growth to power up a grass type attack, rhyperior and dusknoir are physical and special walls, respectively. Alakazam is my special sweeper.
I feel like switching out rhyperior and alakazam would be a good idea, but I dont know for who? Im open to anything

 

[Hiatus]

It'd be a good idea to switch Rhyperior out for Skarmory; it makes a great physical wall. For moves, try Brave Bird, Roost, Stealth Rock, and either Spikes or Whirlwind. For EVs, go with 224 HP, 252 Def, and 32 SpD, and as far as nature's concerned, try Impish. It'd be super-effective against electric attacks though, but I guess you have Garchomp to take care of them. :] It'd be weak against fire moves as well, but Blaziken could endure those hits pretty easily.