#227.377
Skarmory/Hydreigon
227.377
steeldragon
#377.227
Hydreigon/Skarmory
377.227
darkflying

74(-9)
HP
83(+9)
96(+8)
ATK
88(-8)
106(-17)
DEF
123(+17)
68(-28)
SP.ATK
96(+28)
76(-7)
SP.DEF
83(+7)
88(+9)
SPEED
79(-9)
508(-44)
TOTAL
552(+44)

Regular
Sturdy: Can't be 1-hit KO'd at full HP.
Levitate: Immune to Ground-type moves, Spikes, Toxic Spikes, and Arena Trap.
Keen Eye: Accuracy can't be lowered.
Hidden
Hustle: Physical moves deal 1.5x damage but have 0.8x accuracy.
Weak Armor: After hit by a physical attack, this Pokémon's DEF is lowered and SPEED rises one stage.

x2
fightingground
electricfairyicerock
x2
x1
darkdragonfairyfireghostice
bugdragonfightingfireflyingnormalpoisonsteelwater
x1
x1/2
bugelectricflyingnormalpsychicrocksteelwater
darkghostgrass
x1/2
x1/4
grass
-
x1/4
x0
poison
groundpsychic
x0

#227
Skarmory
227
steelflying
#375
Deino
375
darkdragon
Lv.50
#376
Zweilous
376
darkdragon
Lv.64
#377
Hydreigon
377
darkdragon