Skills for an Inferno hero.

They don’t affect him, just like dispel magic. Adepts also don’t.

How come they don’t affect him? Messengers dispel all positive effects. Adepts can dispel with their purification, and dispel magic also works. It’s just a regular spell that can be dispelled.

Added 1 minute ago

Yes, demons struggle without logistics; it’s a useful skill, but it’s hard to call it the most important.

It’s the most important if it’s hard to call it the most important. Speed is primary for demons.