Damage that doesn't give depravity points.

[gronnelg]

Check this out from the desember 2019 FAQ:

Q: Do abilities that deal wounds or mortal wounds count as
attacks and generate depravity points? For example, the Keeper
of Secrets’ Ritual Knife ability (not the weapon attack), the Dark
Temptations ability or the Excess of Blades ability, which can all
inflict mortal wounds.
A: No. Attacks are described in the core rules; they must
use the attack sequence.

Q: Do endless spells that deal damage generate
depravity points?
A: No. An endless spell is independent of the caster that
created it.

I didn't know about this. I guess I don't really have a question, I was just amazed that not all damage gives depravity points! 

[Choas Lord Mike]

That is probably why it is considered to be OP because most people do not know it really works.