How do I find Chansey in the Safari Zone? (Heartgold)

Question

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.

Comments

You must try harder.Patience is the key :)

Answer 1

Have you put in 12 plains objects? That is a requirement for finding Chansey. Source

Comments

I can't do it, do I have to become champion?