Evolve head to Poliwhirl
Pokemon: 61
Evolve body to Grotle
Pokemon: 317
#60.316
Poliwag/Turtwig
60.316
flobchiwodolf
watergrass
#316.60
Turtwig/Poliwag
316.60
whimsi_call
grasswater

45(-5)
HP
50(+5)
62(+6)
ATK
56(-6)
56(+8)
DEF
48(-8)
41(-2)
SP.ATK
43(+2)
45(-5)
SP.DEF
50(+5)
50(-20)
SPEED
70(+20)
299(-18)
TOTAL
317(+18)

Regular
Damp: For all Pokémon on the field, Self-Destruct, Explosion, Mind Blown, and Aftermath do nothing.
Water Absorb: Absorbs Water-type hits to restore 1/4th max HP.
Overgrow: When it has 1/3rd or less max HP, Grass-type moves have 1.5x power.
Hidden
Swift Swim: 2x SPEED in rainy weather.
Shell Armor: Immune to critical hits.

x2
bugflyingpoison
x2
x1
darkdragonelectricfairyfightingfireghostgrassicenormalpsychicrock
x1
x1/2
groundsteel
x1/2
x1/4
water
x1/4

#60
Poliwag
60
6
Game Freak & taylormai
water
Lv.25
#61
Poliwhirl
61
9
Game Freak & naga_sake
water
WATERSTONE
#62
Poliwrath
62
+
Game Freak
waterfighting
KINGSROCK
or Lv.37
#186
Politoed
186
+
Game Freak & green494
water
#316
Turtwig
316
+
xyloldi
grass
Lv.18
#317
Grotle
317
4
hero.drawing
grass
Lv.32
#318
Torterra
318
6
scrapi
grassground