Btw, just found out fast way to farm dimension shards...
if you're just purely in rifts to farm dimension shards.. ALWAYS, ALWAYS farm chapter 1... using 3 star or below characters (level 30-40) that can easily clear it in a short time. Using too high level heroes e.g. 6* heroes for a chapter 1 is overkill - and I can confirm will surely drop less shards.
Just rinse and repeat for any of the dimension rifts that you're aiming to farm... e.g. destroyer, Loki etc.. in chapter 1.
You'd only farm in chapter 5 when you're looking for high level "gears" e.g. dodge, crit rate gear. As those high level gears only drop in chapter 5 (but they costs insanely a lot of energy - 14 each which is a waste if you're just going after the shards).
The above tip helped me a lot, found it in MFF reddit.. been farming dimension shards like crazy since today after I got to know about this.. so many gears need upgrading past level 9:
https://www.reddit.com/r/FutureFight/commen...quirements_too/can easily get 150+ dimension debris in a few portals in a day. So yes time to stop complaining why we're getting so little debris.. is all along due to doing it the wrong way (farming at highest level)

experiment now .. got around 100 dimension shards per 30 minute auto play kinda great.