Master battle help!

[Night Shadow]

O.k, in master battle, set 4, I kepp on losing on the last battle aganst Palkia.
My team
;491; w/expert belt
Brave
Dark Pulse
Dark viod
Dream eater
Nightmare

;491; w/lum berry
Naughty
Energy ball
Grass whistle
Seed Flare
Aromatherapy

;250; w/life orb
Naive
Earthquake
thunderbolt
Sacred fire
Thunder

;386;(attack) w/Focus sash
Gentle
thunderbolt
psychic
recover
Superpower

;151;w/twistedspoon
modest
aura sphere
psychic
metronome
thunder

;395;w/expert belt
calm
Flash cannon
surf
ice beam
hydro cannon

*Note* I really can't change natures on Darkria and Shaymin, they were hacked by a friend of mine and I just use them to beat masters battle. Hydro Cannon will be replaced with grass knot so don't change it.

 

[Porygon-Zard]

i dont know those guys really, give Choice Specs to empoleon.

 

[Night Shadow]

i dont know those guys really, give Choice Specs to empoleon.

Would wise glasses be any good for Empoleon?

 

[SapphireL]

Ho-oh (Naive Nature [since you have one with it]) @Choice Band
-Sacred Fire
-EQ
-Aerial Ace
-Punishment/Thunderbolt/Thunder

You don't need Thunderbolt AND Thunder on the same set. One or the other.

 

[Lugiatina]

Brave natured Darkrai. Yeah, that nature sucks for Darkrai since he is a fast special sweeper similar to Mewtwo. Try timid, hasty, or modest ones. Also, you might want to switch your attack deoxys to defense, or try a rash, modest, hasty, timid, or any other nature which favors toward a physical or special sweeper. Also, you may want a faster shaymin.