I'd really love to see an always-on concentration booster offered at a quest, some day. I'd probably plunk down a chunk of change for one, easily way higher than tier 6 in value for me.

It could be a pinky ring, concentration regin.... That's kind of Thief-Ish. Also on my wish list- how about a confidence booster? Especially as it affects recovery after death. If we ever have a Guild type quest, such as Paladins or Clerics have these would be great items for hitting a certain level.

"Those who die heroic deaths are long remembered, thieves and drunks and cravens soon forgotten."
-Varys