#23.33
Ekans/Nidorino
23.33
Artistmaelmc
Poison
#33.23
Nidorino/Ekans
33.23
Artistbigtimeang
Poison

43(-9)
HP
52(+9)
68(+4)
ATK
64(-4)
52(+4)
DEF
48(-4)
45(-5)
SP.ATK
50(+5)
54
SP.DEF
54
61(+3)
SPEED
58(-3)
323(-3)
TOTAL
326(+3)

Regular
Reg.
Poison Point: On contact, the attacker has a 30% chance to be poisoned.
Rivalry: Inflicts 1.25x damage against the same gender and 0.75× to the opposite gender. Doesn't work if either Pokémon is genderless.
Shed Skin: Each turn, there is a 33% chance of curing its major status condition.
Intimidate: Upon entering battle, lower each foes' ATK one stage.
Hidden
HA
Hustle: Physical moves have 1.5x damage and 0.8x accuracy.
Unnerve: Foes are unable to eat Berries.

x2
GroundPsychic
x2
x1
DarkDragonElectricFireFlyingGhostIceNormalRockSteelWater
x1
x0.5
BugFairyFightingGrassPoison
x0.5

#23
8
Ekans
23
Artistterracota
Poison
Lv.22
#24
+
Arbok
24
Artistsdfproteam
Poison
#23
8
Ekans
23
Artistterracota
Poison
Lv.22
#24
+
Arbok
24
Artistsdfproteam
Poison
#32
+
Nidoran♂
32
Artistkingofthe_x_roads
Poison
Lv.16
#33
6
Nidorino
33
ArtistGame Freak & blaquaza
Poison
Moon Stone
#34
+
Nidoking
34
ArtistPokémon TCG & hopesndreams
PoisonGround
#32
+
Nidoran♂
32
Artistkingofthe_x_roads
Poison
Lv.16
#33
6
Nidorino
33
ArtistGame Freak & blaquaza
Poison
Moon Stone
#34
+
Nidoking
34
ArtistPokémon TCG & hopesndreams
PoisonGround

Route 4, 8, 9, 10, 11
Pokemon: 23
Route 26, 27, 32, 33, Cerulean Cave, Victory Road, Evolve Ekans (Lv22)
Pokemon: 24
Route 3, 9, 22, Safari Zone A1, A2, A3
Pokemon: 32
Route 9, 35, 36, Safari Zone A1, A2, A3, A4, Viridian River, Evolve Nidoran♂ (Lv16)
Pokemon: 33
Evolve Nidorino (Moon Stone)
Pokemon: 34