These tips are generally for the Mythic version of these encounters. however most of the advice can be used in Heroic as well.
This is a ST fight. Currently a lot of High Ranks are guilds that bring in the adds during the last seconds of the boss fight for padding purposes.
Multi-Sided Strike always has the same color order. Only the locations are different. Blue - Green - Red - Green - Blue.
Consider Zeal if you get 3 sets of adds.
If you get Chaotic Displacement DO NOT MOVE AFTER YOU'RE TELEPORTED. You will have 10 seconds of immunity to see what is going on to make sure you do not die. If you're on the Right Side move out of melee incase the other player gets a last minute Volatile Charge. You do not want this dropped in melee.
Consider Zeal if you struggle with uptime.