User blog comment:The Lost Marbles/Seles, the Shooting Star/@comment-25193301-20140803204008/@comment-25193301-20140804054235

Tweaked Asterism to be much simpler to explain. It's essentially for her, but her AoE Blueshift and Supernova are able to proc it. Clarified this by saying the boost is only applied once per spell/attack. Loses the quirky synergy with certain champs or items, but the description's much less of a handful now.

Also, is awesome on her. Gotta go fast.