You could get a Happiny from the guy on the route through Hearthome, evolve it and evolve it again, or you catch a chansey further up of the milk cafe up of Solaceon town, They need love to evolve.
Happiny evolves into chancy evolves into blissy.
evolve your chancey
Train a Chansey and will evolve.
His Pokemon are a gengar,skarmory,tyranitar,blissy,salamance,and garchomp
the episode is called ignorance is blissy
You can one either by trading, or by leveling up a Chansey
There is no Blissy Pokemo on Emerald.Therefore there is no Shiny Stone.
Well, You can't you have to migrate or if u have a gameshark or some codes to unlock it.
Blissy, Blissy has the highest HP of any Pokemon once fully leveled and can learn a whole crap load of attacks
Probably Arceus. He has the highest Base Stat Total of any pokemon, he can be any type, and he has a giant movepool. But he can only be gotten through events (or hacking) Other than that, maybe Kyogre. His rain boosted water spout can do extreme amounts of damage, killing basically everything that doesn't resist it (except Blissy)
You have to go to fuchsia city and go to the safari zone and catch a chansey and evolve it you have to train it.
There is no rental Pokemon in in Pokemon platinum