I want the mini Eye of Janthir. I see no reason to buy it off the trading post when we can earn it ourselves. (I'm going to assume you all want it too.) Not to mention all the other cool loot you get from completing a challenge mode. Therefore, I'm putting together some resources for us for after we kill Deimos. Please add info if you've found some.
New mechanics:
Blue stuff: Every 30 seconds, blue stuff appears on four tiles on the floor. The blue tiles are different for every player. You must stand on one of the blue tiles as it expires or it's instadeath.
Strategy:
I don't think the movement and spikes are any different.
To be safe you may want to bring a movement skill such as blink, lighting flash, shadow step, etc. (see povs below) Sometimes the blues and spikes are close in timing and you have to get to your blue square quickly at the last second.
The blue color appears for approximately 5 seconds before it expires.
Having someone call blues seems helpful (:05 ish and :35 ish)
Videos:
Mesmer tank pov
Tempest pov:
Condi Druid: https://youtu.be/Ww2eq90kj6I (that last minute Dad button!)