#27.61
Sandshrew/Poliwhirl
27.61
groundwater
#61.27
Poliwhirl/Sandshrew
61.27
waterground

55(-5)
HP
60(+5)
68(-3)
ATK
71(+3)
71(-7)
DEF
78(+7)
30(-10)
SP.ATK
40(+10)
36(-7)
SP.DEF
43(+7)
73(+17)
SPEED
56(-17)
333(-15)
TOTAL
348(+15)

Regular
Damp: For all Pokémon on the field, Self-Destruct, Explosion, Mind Blown, and Aftermath do nothing.
Sand Veil: 1.25x evasion during sandstorm and avoids sandstorm damage regardless of its type.
Water Absorb: Absorbs Water-type hits to restore 1/4th max HP.
Hidden
Swift Swim: 2x SPEED in rainy weather.
Sand Rush: 2x SPEED during sandstorm and avoids sandstorm damage regardless of its type.

x4
grass
x4
x1
bugdarkdragonfairyfightingflyingghostgroundicenormalpsychicwater
x1
x1/2
firepoisonrocksteel
x1/2
x0
electric
x0

#27
Sandshrew
27
ground
Lv.22
#28
Sandslash
28
ground
#60
Poliwag
60
water
Lv.25
#61
Poliwhirl
61
water
WATERSTONE
#62
Poliwrath
62
waterfighting
KINGSROCK
or Lv.37
#186
Politoed
186
water