Maintenance for the week of September 30:
• [COMPLETE] Xbox: NA and EU megaservers for patch maintenance – October 2, 6:00AM EDT (10:00 UTC) - 12:00PM EDT (16:00 UTC)
• [COMPLETE] PlayStation®: NA and EU megaservers for patch maintenance – October 2, 6:00AM EDT (10:00 UTC) - 12:00PM EDT (16:00 UTC)
Ye, it is a potency rune for level 25-35, so you will find them in those area's. They also can be deconstructed from lesser glyphs with an invert effect (e.g. less magica cost).
There is no specific area you can farm them . they can be found anywhere in level 25-35 maps.
Through me you pass into the city of woe:
Through me you pass into eternal pain:
Through me among the people lost for aye.