Quote Originally Posted by WK74648 View Post
I hear this alot but I have yet to see it happen in the groups i'm in. I watch MTQCaptures videos on this one again here. https://youtu.be/0LWBk7HH2dU

At 2:35 she starts explaining the mechanic. At one point in the video she says "To avoid death." Shortly after she says it, the 2nd wave of light and dark goes off. The monk gets hit at full HP (91k) and dies instantly. Again at 4:19 the mechanic I'm referring hits one of the tanks who has max health at 142k. Dies instantly. What am I missing here?
I found another video where I could see some damage numbers and it does indeed seem to deal unsurvivable amounts of damage if you stand in the wrong color. I was maybe thinking of the damage amount of the mechanic where there's only white swarms. So fair enough, let's call it a one-shot.

Still, it allows plentiful time for you to maneuver yourself into position. I'll refer to the instructions Iscah gave on the first page:
Quote Originally Posted by Iscah View Post
Unless there are extra complexities I haven't noticed yet (having only cleared it tonight), figuring out where to stand for the portals + dark/light is a two-step process.

1. Portals appear - pick a square either side of the centre; it doesn't matter which for now. Make sure the portal behind you and to the side are different colours.

2. Dark/light beams appear - are you on the right side? If not, move diagonally to another square on the other side of the centre line.

The key element is to have different-coloured portals to your side and back.
I checked the timings from a youtube video, and you have 10 seconds to do step 1, then a further 8 seconds to do step 2. That's a total of 18 seconds from the beginning of the mechanic until it goes off. You don't even need to worry about your DPS on normal mode - you can stop doing anything else and take your time to position yourself correctly.