Regarding this post: http://pokegym.net/forums/showthread.php?t=67577, I don't think Ariados' text is meant to be self-referential.
Here is Ariados' text:
おたがいのポケモン全員(アリアドスはのぞく)のにげるエネルギーは、それぞれ1個ぶんずつ多くなる。
The Retreat Cost for all Pokemon on both sides (excluding Ariados) becomes 1 Energy...