MAJOR SPOILERS BELOW.
I'm in the last fight and have figured it out to the point where I get the elder brain down to below 50hp. Basically one turn away from death. But before I get a chance to act, all sorts of quick cutscenes occur, a nautiloid shows up, and I get the "Your party has died. Load new game." message. HUH?
Steps I took to get there:
- Summon all my allies.
- Focus attacks on the Emperor. Kill him.
- Haste/Misty Step/Fly to get everyone to the portal.
- Use stones on portal. OPen it up. Move party inside while summoned allies deal with Mind Flayers and dragon.
- Move to brain, attack.
- First round of attacks gets it to about 50hp.
- Party wipe.
I'm missing something obvious but after three attempts, I'm not seeing it. Any advice?
Are you moving your party out of Negation Blast? He makes one big shiny orb that will blow up the entire platforms nearby and mark allies affected within its aura. You are probably taking too long in the final fight as well if a Nautiloid is dropping reinforcements, the Emperor and Dragon should be dead by the first 2 turns and the other mindflayers should die by turn 3. while your Illithid is channeling the Netherstones on the portal.