I followed this guide, the result is fantastic, and I get this:
Averages in 12 runs: Total XP Gained por run: 7.697.771.370 | XP / Hour: 38.125.669.449
Full log:
[Adventurer][Rift] Total XP Gained: 11,214,104,286
[Adventurer][Rift] XP / Hour: 56,190,317,877
[Adventurer][Rift] Total XP...