She only has three!
Ash had four when she caught her second Pokémon!
And when she did she only used feeniken for those four battles! What's the point of being a trainer if you don't battle or do anything?
She's just there for the sidelines all the time!
She just sits there looking sorry for ash!
Doiiii Serena!
The least you could do is put on an outfit like dawn did and cheer!
But boo you stand there looking like
This!

Ewwwwww