Runes max at at level 10
so no you cant make a purple as good as a yellow EVER
I mean have you even looked at the rune guide? It tells you what every rune is at each level.

SO you clearly have no idea what you are talking about

And you are the one being condescending to coiners
Talk about the pot calling the kettle black

So could you please take me to school on how to play this game? I would love more of your insight