Quote Originally Posted by DeadRiser View Post
No sir, I'll chime in and say that you are wrong. Shadowseer is definitely based on the user's remaining health. Go fight some Amaljaa THM's and get them to less than 25% health. They start casting Shadowseer...
Engulf the soul in dark flame, dealing damage and increasing magic potency in proportion to the difference between the target's HP and yours.Link
Then from THM back then(in the comments), "Hit them when their HP is full for huge damage. The more HP they have the more they take."
Casting shadowseer when they reach 25% hp is part of their AI, the skill itself is based on a comparison of the target's hp and yours. I'm just stating that there was a skill that has a damage increase based on the target's hp.