Merry Christmas everyone!

There is a spell that has the animation of a black hole surrounded by glowing yellow dust. What is that spell?
I don't know what it is but it's strong enough to one-shot me.

Could be implosion

That does sound like the Implosion spell. The spell is, in fact, a one-hit kill if you fail on a fortitude saving throw. It has no effect if you succeed on the save. The spell, for some reason, doesn't count as death magic so immunity from death magic won't protect you, either. Your only option is to raise your fortitude saving throw or use an effect like spell mantle to block its deadly effect.

Yes it is [url=http://nwn.wikia.com/wiki/Implosion ]Implosion [/url], the spell that made me bang my head. On the screen it says "save vs Death" but Death Immunity belt does not work on it. It instantly kills "everyone" who fails FORTITUDE save.

Only solution I found was bump my fortitude with rings and necklages and save often during the fight and just load when I fail.

What module are you playing where you're being Imploded? I remember Nellise casting this spell in Aielund Saga to devastating effect but I don't recall being on the receiving end too many times (most recently in a Cormyrean Nights cutscene).

Aribeth uses it in the OC

Thanks guys!