Harmony - Troop Symmetry

Destroyers are as mobile as steeds.
In general, this Inferno build, considering the methodology:
Base:
1. Madmen
2. Hellhounds
3. Succubi
Magic middle:
4. Ifrits
5. Destroyers
6. Devils.
Elite:
7. Lord of the Abyss

In my opinion, it's better than the current one.

Added 1 minute ago
Imp plays a slightly different role in the demon tactics, and the Madman is just as mobile, but at the same time defends and attacks equally well.