I just joined a clan with my friend and we were in steam voice chat together when we clicked "Fight" on "Today's Raid". We got a screen with an immortal, there was a timer and a damage bar that wasn't moving. I went to try and check my heroes, that didn't work, same with my relics. So I asked my friend what's happening, he said he already killed it 5 times, but I saw nothing. We were both confused as to what was going on. Since I'm an idle player I confirmed that I still had idle DPS, I did. Then the timer ran out.
The results then showed me that I had not defeated the level one immortal, I had a 1h countdown to retry. My friend said his screen showed he had, and he got 6 hero souls (totally not worth the 1M hs 50 rubies are otherwise worth). He had a 23h countdown to try again.
Then I clicked the refresh button; because that was really required when I was joining his clan. Finally it showed that I had defeated the immortal, and rewarded me 1 hero soul. It did not show a retry counter and instead showed the same counter to try again for tomorrow's raid. Also it showed my 0 damage vs his 500k damage.
Well... I would say "what the" here. I need a manual for this part of the game. There was no indication of what to expect, what to do, nor of why we were doing this? I assume at some point, hopefully in a few days, we'd be earning more hero souls than the 50 rubies are worth, but without a formula or instructions I can't guess when that might be.
Does anyone have a simple cogent way to explain what clans are, how you do "Today's Raid", what you should be prepared for going in, and what outcomes you can expect?