Havent gotten 3rd trial key. (Campaign done)

[Runiix]

How can i best farm the trial key, so i can get into the 3rd one?
Two times i have gone through the map with the trialmaster statue, but both of the keys were to low and just said "wont give you any escand points"

[Pandorian]

Barya is level 60+ drop, Trial Master is level 75+ drop. Either farm the appropriate areas for the Barya drop at the end of Act 3 Cruel, or get your drops from maps.

[JiggleBill]

Start running low tier maps. Just keep playing and youll get plenty. Also if in trade you can buy them for like 1ex.