How do you remember every instance?

[Gemina]

With gear you can pretty much skip adds when the boss at 10% and lower HP. I get pretty upset seeing people switch off the boss when you can kill him before the next add wave ><.

Condition 1: adds have more HP than boss - kill boss
Condition 2: boss has more HP or HP regen via add: kill adds
Condition 3: add brings KO mechanic: KILL IT NOW!!