oval stone is for certain bird Pokemon
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.
JUST Happiny can evolve from the oval stone.under ground digging
let happiny hold the oval stone and train it one level and it will evolve
leveling it up with the oval stone
Happiny is the only Pokemon that can evolve from a Oval Stone in Pokemon Diamond, Pearl, and Platinum. You will need to max its Happiness during the morning or day, let it hold an Oval Stone, and then level it up once. It will, then, evolve into a Chansey.
It evolves Happiny. When Happiny levels up during the daytime while holding the Oval Stone, it will evolve into Chansey.
Oval stone makes Happiny evolve.
an oval stone evolves happiny
You can evolve happiny with an oval stone after its friendship is high
The Oval Stone is an item in the Pokemon games which can be used to evolve certain Pokemon. For example, it can evolve Chansey.
The oval stone evolves Chansey.