Hello /vp/. Could you recommend me 6th pokemon for my white 2 run? Having problems with Drayden's gym right now. My team as of now:

Samurott lvl 45
Aqua Tail
Surf
X-Scissor
Revenge

Lilligant lvl 45
Giga Drain
Hidden Power psychic
Quiver Dance
Sleep Powder

Chandelure lvl 45
Flame Burst
Energy Ball
Shadow Ball
Hidden Power fighting

Galvantula lvl 45
Thunder
Signal Beam
Energy Ball
Volt Switch

Excadrill lvl 45
Earthquake
Rock Slide
Slash - will replace with Iron Head when I find 1 red shard more
Swords Dance