Skills for an Inferno hero.

I believe that if you don't aim for super-powerful abilities, Dark Magic is worse for demons than Chaos.

Usually, I choose Deleb, and for him, I take:
Machines - Rapid-Fire Ballista
Attack - Fire Arrows
Logistics - Quick Gate Opening
Luck - Wide Gates
Chaos - Withering Flame
And after that, his favorite mechanical toy becomes something to be feared, because even weaker units...