Originally Posted by lu1z
Well, it was early in fifth Gen or a bit before when PO was made so maybe they just wanted to make their own tiers and hope everyone preferred them. But it was very annoying when you used a Pokemon in a server and its banned in other.
Im also thinking of using Showdown, did it once and it looked very good.
I perfer Showdown over PO. Maybe we can get a battle in this weekend !