I was running Bastion of Power today to get my Yugo favor. In the end fight with Erisades, I know you can use his antigravity to up to some platforms and activate some buttons, but I had never done it before, I usually just go and kill him.
Today I decided I would try. I miss the first 2 chances, but I am able to get up there on the third. Then a sneaky thought enters my head: "I can just kill Erisades from up here, stay up and kill the marilith with no problem..."
Well, as you might have guessed, this does not have a happing ending. After killing Erisades, multiple traps start to active on the platform out of the blue and before I know it I'm dead.
So that's why the wiki says: "Be sure to jump down after lighting the runes".
Made me chuckle a bit.