You can one either by trading, or by leveling up a Chansey
Well, You can't you have to migrate or if u have a gameshark or some codes to unlock it.
evolve your chancey
If you are talking about the Sinnoh Pokedex, the Pokemon is Unown. If it is in the National Pokedex, I have no idea. But it should be easy to find on one of those online pokedexes.
Blissy can have more than 700hp but it has very low defense so it can take heavy damage.
Train a Chansey and will evolve.
His Pokemon are a gengar,skarmory,tyranitar,blissy,salamance,and garchomp
in victory road there is an ace trainer that you have to battle and she has a blissey
Happiny evolves into chancy evolves into blissy.
the episode is called ignorance is blissy
find a chansey south of Solaceon Town and train it to lvl 50
There is no Blissy Pokemo on Emerald.Therefore there is no Shiny Stone.
Blissy, Blissy has the highest HP of any Pokemon once fully leveled and can learn a whole crap load of attacks