I spend most of my time playing sentinel and I love how you get mostly loot dropped for your class its actually awesome. I sometimes play alts rogue, primalist etc and I was thinking as another tier 7/7/6 sentinel helm dropped “man this would be sick if I had one for my rogue” so I thought maybe;
A 300c + dropped only echo where you have to fight a hard boss or whatever and at the end you have a machine where you put in an item and it changes the class from A to B (example sent helm to rogue helm) but keeps the tier values, just changes them to random ones from the class you’ve picked. You can only use the machine ONCE per run and since the echo is a rare drop from, well whatever you dev’s decide then people arent going to just be smashing it willy nilly, plus double 7+ exalts arent exactly common for the majority of players.
I think something like this could be a lot of fun and also super cool for, well now when its mid way through the season, players have dropped off and lots of people are testing alts and stuff 
Thanks