I have finished the challenges overnight, I was a little staggered in the challenge count, meaning one Talisman count was slightly ahead of the next one but it’s done now.
I started with no rare souls and finished with 114, over 500 red, green and purple evo 3* shards, 200 yellow and 150 blue.
I managed around 100 skill shards too, and T1 1* evo runes? I have so many I will not need anymore for a very long time.

Through the icy blue legendary souls I nabbed two gold T2 cosmics also through the gold acquired when one sells the gold idols my gold stash is not great but good enough to continue with my awakening processes.
The ironite paidback has left me only slightly below what I started with, this really was worth ignoring pretty much the rest of the game short term to restore resources.
I did not put enormous brain power into a team, I just used the characters I had with the right Talisman on them, once each challenge was completed I’d replace that character with a much more powerful multi hitter, my best time now is approx 25 secs.
I’m still farming it now to finish off another icy blue soul, definately worth keeping some keys for this dungeon to farm resources when you need them, Thankyou Navigator nice work even if the dungeon was recycled material.