#363.377
Galvantula/Hydreigon
363.377
bugdragon
#377.363
Hydreigon/Galvantula
377.363
darkelectric

77(-7)
HP
84(+7)
95(+9)
ATK
86(-9)
80(+10)
DEF
70(-10)
106(-9)
SP.ATK
115(+9)
70(-10)
SP.DEF
80(+10)
101(-3)
SPEED
104(+3)
529(-10)
TOTAL
539(+10)

Regular
Compound Eyes: Moves have 1.3× accuracy.
Levitate: Immune to Ground-type moves, Spikes, Toxic Spikes, and Arena Trap.
Unnerve: Foes are unable to eat Berries.
Hidden
Hustle: Physical moves deal 1.5x damage but have 0.8x accuracy.
Swarm: When it has 1/3rd or less max HP, its Bug-type moves have 1.5x power.

x2
dragonfairyflyingicerock
bugfairyfightingground
x2
x1
bugdarkfireghostnormalpoisonpsychicsteel
dragonfiregrassicenormalpoisonrockwater
x1
x1/2
electricfightinggroundwater
darkelectricflyingghoststeel
x1/2
x1/4
grass
-
x1/4
x0
-
psychic
x0

#412
Joltik
412
bugelectric
Lv.36
#363
Galvantula
363
bugelectric
#375
Deino
375
darkdragon
Lv.50
#376
Zweilous
376
darkdragon
Lv.64
#377
Hydreigon
377
darkdragon