You don't, you level up a Chansey while it's holding a soothebell to make it happy.
find a Chancey, and then get it to max friendship and level it up
Sinnoh Dex: Aipom
Personally, I like Togekiss, Snorlax, Blissey, Leafeon and others
you cant... you have to make chansey evolve with high friendship. you can find chansy on rout 209 in diamond, pearl, and platinum
Wow... That's a really good team!
Blissey is a Normal type pokemon.
its not darkiye
You can get a happiny egg in narcene city. you need to evolve this
blissey. it has the highest hp in the game but not too good moves
no you have to trade in gts or with 2 ds that have Pokemon pearl,platinum and diamond
You need an event.
Capture Mew!