Hello! I will see how much I can help this team.
Alakazam:
Looks good.
Garchomp:
Dual Chop or Outrage over Dragon Claw. Outrage for higher power, snd Dual Chop because since it hits twice, it gas the same overall power but it can break Subs, Sturdy, Focus Sash, etc. Also, Poison Jab is doing absolutely nothing for this set. Grass is covered by Fire Fang and you should not be staying in on Fairies. Try Stone Edge as that is just a good move and provides EdgeQuake coverage.
Scizor:
Maybe, if you want, replace Roost for Bug Bite. That way you have Bug STAB without having to switch afterwards. Or, use Defog, so you can get rid of SR for Volcarona. I recommend Bug Bite a bit more.
Gliscor:
'Scor is one of my favorite Pokémon. But Brick Break has no place on a set of his. Try Defog to get rid of rocks for Volcarona if you don't use it on Sciz. If you do, try Knock Off, as that bothers walls, Ice Fang, as that hits Flying types, Smack Down, to hit Flying-types once and then you can hit them with EQ, or Protect, to Toxic-stall. If you do use Protect, consider replacing Roost for a Sub-Toxic set.
Jirachi:
If you want to use Iron Head, try a physical set:
Jirachi@ Leftovers
EV's: 252 Atk, 252 Spd, 4 HP
Trait: Serene Grace
Jolly Nature
-Wish
-Protect
-Iron Head
-Zen Headbutt
Or, for a Special Serene Grace abuser:
Togekiss@ Leftovers
EV's: 252 SpAtk, 252 SpDef, 4 HP
Trait: Serene Grace
Calm Nature
-Air Slash
-Dazzling Gleam
-Flamethrower
-Psychic
This is the set I recommend because ATM you have more Physical attackers than special, not counting Gliscor or Alakazam because they have few attacks and are meant to die quickly, respectively. Air Slash flinches, Flamethrower burns, Dazzling Gleam STAB's and Psychic lowers SpDef.
Volcarona:
Replace Fire Blast for Fiery Dance, which can raise your Special Attack. Also, replace Hurricane for Quiver Dance, as that raises all of you relevant stats
Hope I helped!
-Infernapeburn
