The most powerful warrior.

In my opinion, the Archdevil is stronger than the Titan due to its speed (it can reach almost any point on the map) and its immunity to magic (meaning you can't slow it down, blind it, or curse it, etc.). The Titan, on the other hand, can be blocked (although lightning attacks will still occur, but there's not much you can do about that), and its stats can be reduced with spells. Furthermore, I think the Archdevil is unfairly overlooked. While it doesn't teleport across the entire map, Tactics can help with that. Also, it has the highest upper damage among all units. If you increase its lower damage with Divine Power, it becomes a true killing machine. However, its major drawback is that it's vulnerable to all types of magic (including Blindness and Subjugation).