User blog comment:Typhron/Xerath QoL changes/"Rework"/@comment-4881935-20121024044850/@comment-3475363-20121024094539

I would have made it to:

"Every spell cast increases Xerath's cast range by 100 for 3 seconds. This can stack up to 5 times. Any new spell cast refresh the duration. Does also work with the multiple casts of Arcane Barrage."