rpg.net

“…and to correct what seems to be fated to be a common misperception about D:tF…

You do NOT need to get 'more evil' to become more powerful. There's a measure of how generally pissed off your character is – a trait called (wait for it) “Torment”.

Demons with high Torment can more easily access some of the mayhem-oriented powers of their Apocalyptic Form. However, high Torment demons also have trouble using OTHER powers in ways that are subtle or require fine control. A high-torment demon could (conceivably) try to light a cigarette with his powers and wind up setting everything he's touching on fire. (It's a bit of a silly example, but it gets the point across.)

Generally speaking, high-Torment = more damage, less control. Low-Torment = less damage, more control.

-G.”