blastoise is the best
There are many Water Type Pokemon in Pokemon Platinum, however, there is only one strongest one. That Pokemon is Palkia. Palkia is one of the Main Storyline Legendaries in Pokemon Pearl, it is a Water/Dragon Type. If you are looking for the strongest Non-Legendary, your best bet is Gyarados. Any exceptions?
there is no strongest Pokemon because every Pokemon has weakness arceus is the strongest Pokemon in Pokemon pearl but can still be beaten
arceus
the strongest water Pokemon is Palkia
Arcues Any of them it depends how you train them.
Draco meteor
for me ubroan
ı think its infernape in sinnoh pokedex. ı think its infernape in sinnoh pokedex.
If by "strongest" you ment strongest Pokemon that would probably be Palkia if you ask me.well if you ask me i think it would be arceus which you can get in action replay.
Earthquake and hyper beam
my opinion is lugia.
train your pocket monster really good and think about it.