Skills for an Inferno hero.

If you play without a ballista, it will be very difficult to deal with neutral creatures without teleport. Therefore, it's better to take either machines or logistics, and the sooner the better. While it's easier to play with a ballista, logistics is more versatile and has more advantages, and most importantly, it allows you to access the Call of Urgash spell (you never know when it might be useful). Logistics is not just about teleport and fast gate; it also allows you to move around the map faster, which provides various strategic advantages and the ability to take Death March and teleport archdevils to yourself using Altgreim during a castle siege.