How bar under enemy’s (boss’s) health works in PoE 2
You may notice that during fights in PoE 2, under opponent’s health, there is a bar. We will tell you what it does.

full version). You have to fight a lot in this title, as it is traditional for the genre. During combat, you can observe that under enemies’ health bar, a small one is filling up. What does it do? Let’s talk about it.
How bar under opponent’s health works in PoE 2
Noone should be surprised that PoE 2 has three major components – fights, loot and ive skills. You will spend most of the time doing those 3 things. Among them, combat is especially crucial. Some opponents will die quickly under your hits/spells/minions, some of them have a lot of health, though. Yes, I’m looking at you bosses. However, there is a trick which may help you.
If you wonder about the bar under enemies’ health, you are in a good place. If you fill it up, the opponent should be stunned. Of course, in most cases, you will kill adversaries sooner than that. However, if you manage to fill this bar, you will be able to use this advantage.
As you can see, it is one of the tools to kill enemies quickly, the other one is a ive skill tree. You can invest your points in it, to make yourself more powerful. Luckily, even if you made a mistake, you can respec it. How to do that? You need a special NPC. You can learn how to meet him from our guide. Good luck.
More:PoE 2 Guide