#3.30
Venusaur/Nidorina
3.30
grasspoison
#30.3
Nidorina/Venusaur
30.3
poisongrass

76(+3)
HP
73(-3)
68(-7)
ATK
75(+7)
72(-5)
DEF
77(+5)
85(+15)
SP.ATK
70(-15)
85(+15)
SP.DEF
70(-15)
64(-8)
SPEED
72(+8)
450(+13)
TOTAL
437(-13)

Regular
Poison Point: On contact, the attacker has a 30% chance to be poisoned.
Overgrow: When it has 1/3rd or less max HP, Grass-type moves have 1.5x power.
Rivalry: Inflicts 1.25x damage against the same gender but 0.75× to the opposite gender. Doesn't work if either Pokémon is genderless.
Hidden
Chlorophyll: 2x SPEED in sunny weather.
Hustle: Physical moves deal 1.5x damage but have 0.8x accuracy.

x2
fireflyingicepsychic
x2
x1
bugdarkdragonghostgroundnormalpoisonrocksteel
x1
x1/2
electricfairyfightingwater
x1/2
x1/4
grass
x1/4

#1
Bulbasaur
1
grasspoison
Lv.16
#2
Ivysaur
2
grasspoison
Lv.32
#3
Venusaur
3
grasspoison
#29
Nidoran♀
29
poison
Lv.16
#30
Nidorina
30
poison
MOONSTONE
#31
Nidoqueen
31
poisonground