In the Area Customizer i've put all the blocks as Meadow so Chansey should be there but i've been doing it forever now and I haven't found it.
Have you put in 12 plains objects? That is a requirement for finding Chansey. Source
How to change your username
How to add a user avatar
Why was my post hidden?
Flags vs Downvotes
Official PokemonDb League
Type a Pokemon name, type, move or ability to see instant results.