Evolution line
This is the full evolution tree of Poliwag — every stage, every branch and the condition that leads to the next form. The line has 4 forms.
Start of the line
Stage 2
From Poliwag
Level 25
#061
Poliwhirl
Stage 3
From Poliwhirl
Use Water Stone
#062
Poliwrath
From Poliwhirl
Trade with another player, holding Kings Rock
#186
Politoed