Larian Studios Forums Baldur's Gate III Baldur's Gate III - Technical & Gameplay Problems Is Dark One's Own Luck Bugged?

It does not seem to work for Wyll or the PC or am just imagining that?

Temp hit points are tricky, mechanically.
They don't heal you, or stack (although a 1 Temp "shield" will be replaced with a 3 HP one).
Its just a bonus "Extra" HP which eats damage before affecting your real HP.

In my case he gets a buff that acts as temp HP. I didn't notice at anytime he didn't get that buff when the game announced his trait executed.

I noticed it didn't seem to apply at times when a mob died to the extra damage from Agonizing Blast. It also seemed to failed to trigger after i had already gotten temp hp and lost them again. Temp hp shouldn't stack but it should be overwriting if you have fewer temp hp than it would give, ie. if Dark One's Blessing gives you 5 Temp HP then you lose 3 and kill another enemy it should put you to 5 temp HP again and should trigger on any killing blow by the warlock. I'm not sure its just not triggering under certain circumstances but i have definitely seen it not trigger when it should have.