Skills for an Inferno hero.

I always take Attack, Logistics, Luck, and Dark Magic, but the last skill depends on the situation. Sometimes I choose Defense to compensate for the relatively low defense of Inferno units, and to deal damage with Hellfire when surrendering. Sometimes I choose Leadership to summon more units, especially if it's Nimus, and morale is also useful. Machines are also a good addition. However, Chaos Magic isn't very effective. Although demons are supposed to be proficient in this area, as creations of Urgash, they don't seem to excel in offensive magic, and it's not worth taking just for the single Hellfire enhancement. However, Light Magic, strangely enough, is also quite useful for demons.