Enemy Action Markers

[Jeeqbit]

All the markers are pretty consistent actually.

https://imgur.com/a/c9oxF1d

There are at least two not shown in that list which is the new tank buster and shared tank buster markers. These appear as a red mark and a red stack mark respectively on the main tank.

The rest of the mechanics involve looking at the cast name of the boss or other enemies in the enemy list. These cast names will say things like "Left attack" or "Right attack" indicating that you should be on the opposite side, so check that your HUD Layout allows you to see the cast bar properly.

The next thing you should check is the debuff descriptions. If you move the status effects somewhere easy to see in HUD Layout, you can hover over them and see what they do. A common mechanic has been for a fire debuff to mean "stop moving" and for a blizzard attack to mean "keep moving while the cast happens".