Most Electric types will work. So can Fighting, because Dewgong is a Water/Ice Pokemon. Ice is weak to Fighting and Fire. (But the Fire damage will be cut to regular damage, because of water.) Water is weak to Electric and Grass. Furthermore; Grass will be cut to regular damage since of Ice.
I'm not sure but if you know can you please improve it
Dewgong is stronger as it's both a water and ice type Pokémon.
Dewgong is a fine Pokemon, but is far from Legandary my friend. You can't compare it to Pokemon like e.g. Mewtwo, Lugia or Groudon.
electric
It learns it via TM.
I think any electric type Pokemon would be okay.
Dewgong cannot not evolve.
I'm not sure but if you know can you please improve it
I would suggest using a Fire type for Pryce's Piloswine, and an Electric for his Dewgong and Seel.
The pre-evolution of Dewgong is Seel. Seel evolves into Dewgong at level 34.
Dewgong evolves from seel
you can only find Seel i believe... then you can evolve it to a dewgong, I highly doubt you can find a wild dewgong =/
Your team is definitely prepared i suggest you do the following: Take on Lorelei with your zapdos and machoke only use there type moves to defeat her Pokemon, Take on Bruno with poliwhirl and charizard, Take on agatha with your charizard only, Take on Lance with dewgong and zapdos, Take on your rival with charizard, zapdos and dewgong to finish off the elite four.
Seel evolves to Dewgong at level 34.
Dewgong learns Dive at level 45.
No Dewgong cannot evolve as it is Seel's final form.
Dewgong doesn't evolve. - Pokemon Guru