User blog comment:V3hemenc3/Skins that give you Disadvantage/@comment-5523473-20120922023509/@comment-4636093-20120922065945

Actually it was a bug with Ezreal in general.

Rank 1 mystic shot had 100 range more than rank 2-5

The rumor that it was PFE was started when it was tested and PFE was using rank 1 and the other Ez was using rank 2.