This ability suffered at the same time as fury's infusion, and swash's AA dmg proc.
https://forums.daybreakgames.com/eq...uids-infusion-on-varsoon.608078/#post-6720700
that is the thread where I talk about (mainly fury's infusion) but the same really applies for Warlock. We should create highs and lows. I do not think it should be a cookie cutter to wizard's frigid gift. The original design was less damage than frigid gift but more damage by a lot on encounters. In its original state everyone benefited, and smart enterprising troubs that communicate with their warlock were the best users.
That's honestly fine with me. In its original form Curse of Darkness + troub encounter spam = the only time a troub is able to top a parse. It required coordination, and the back and forth between the lock and troub benefited the troub to jcap the lock for more curses of darkness.
All of that fun was eliminated with the installation of an internal cooldown. Most "internal cooldowns" were installed as nerfs but the nerfs usually ended up just full on gutting the ability into irrelavant uncastability.
Please note -- this temp buff actually reduces the warlocks parse -- not increases it.