When you give the poliwhirl a water stone
you can get a poliwhirl or a poliwag and evolve to poliwhirl!! then trade poliwhirl holding a king's rock.
Poliwrath does not evolve further. It does, on the other hand, evolve from Poliwhirl with the use of a Water Stone.
Poliwrath is the last form for poliwag if you used a water stone when it was a poliwhirl. However if you have poliwhirl and have it hold a kings rock then trade it it will evolve to a politoed.
Poliwhirl → Poliwrath, Shellder → Cloyster, Staryu → Starmie and Eevee → Vaporeon
Trade the poliwhirl while it holds the item King's Rock then ask for the politoed back from the person you traded it to.
I don't know. I think you should just raise a Poliwag to a Poliwhirl then evolve it with a Water Stone to a Poliwrath.
lombrea, evee, poliwhirl, shellder, and staryu. some of these can only be found in firered and leafgreen so you will need to trade. that's all I can think of.
you have to have a poliwhirl and give it a kings rock and then trade it.
you can catch a poliwag and evolve it into poliwhirl, and then use a water stone to evolve the poliwhirl into a poliwrath
by trading poliwhirl with the kings rock
If you have access to Two Island, look in the Cape Brink for Poliwhirl.
you must trade with gold or silver in order for poliwhirl to evolve. kings rock