At the lost tower or at a wild chansey or hapinny.
check out: http://www.serebii.net/diamondpearl/items.shtml
Chansey evolves from an Oval Stone.
oval stone is for certain bird Pokemon
in the lost tower,where you find strength just 2 or 1 floorl down that
Hapinny
let happiny hold the oval stone and train it one level and it will evolve
hapinny into chansy
Happiny. You need to make it hold the Oval stone and level it up before it evolves.
The Charzard evolves into a Charmander.
With an oval stone, you can evolve Happiny into Chanssey.But, you need to make Happiny hold that stone and then level it up in order to evolve.
In Pokémon Diamond, Pearl, and Platinum, a Happiny evolves into a Chansey when it is given the hold item 'Oval Stone' andlevels up. It will not evolve just by holding an oval stone.
It evolves Happiny. When Happiny levels up during the daytime while holding the Oval Stone, it will evolve into Chansey.
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