Guild Wars 2

I keep count on how many times I hit her with the orb by the invul stacks she has, but the fact that it runs out sometimes or magically disappears makes it hard to keep count.

Already difficult by the fact that the light rifts spawns by the very outer circles just to purposely screw with your camera which is quite idiotic IMO. This achievement Light in the darkness is more luck than anything it seems since you gotta hope the shadows magically walk themselves into the light rifts while your trying to kite Liadri.

Hold on, you want to make it so that you have to throw more light at her, making the fight harder?

Look at her Vulnerability Stacks. Especially as a Profession that can’t apply it, that will give you a good idea of how many you have given her (also they last for a few minutes, I think).

RedSpectrum.1975:

Hold on, you want to make it so that you have to throw more light at her, making the fight harder?

Spelling mistake, meant vulnerability not invulnerability.