The whole raid felt pretty simple to me, the 1st miniboss side attacks are basically a hyer uber versiono of the Manticore in Castrum LL, the ice and fire mechanic felt absolutelys traightforward as well as the arrows, my first time i died there because i did not pay attention to the 1\2 fire or ice stack despite having a giant bar on top of my head. The ladder game also was a nice addition and helped me a lot on instantly recognizing the pattern without relying on the arrow direction that shows in Normal.

Did my group and myself die a lot in the 1st blind run? Yeah, took a hour+ to clear but it was a blast and didn't felt lamed\cheated from the mechanics, it is just heavy punishing between instant death attacks, death walls and twice comes ruin along with beefy bosses without proper essences (and most of people bring support actions and essences for their first run usually)