Just gave this level an update, more details in the description.

I've used Marcus on easy mode and he just kind of sits there and lets me take him. I could try on normal. And as for Mira I thought she was a more aggressive A.I, she ceetanly was in the campaign.

Marcus, Korvek or Mira AI are the best in this case. You may need to test the difficulty though.

@Green.Sliche
I'm also noticing that the enemy A.I is very laid back and hardly defends himself. I've replaced some of the restless spirits with shamblers (which cannot level up) and increased the levels of some of Malachi's units. I need a personality that is not terribly aggressive but will defend himself when attacked.

I believe you should revise the amount of units player can get.

It's way too easy to snowball and make Empire AI lose all of it's units.

@Simon Evo
I treat the titan units like Horny in DK2 so I won't make them available until level 14. I could possibly add some shamblers if the units provided isn't enough.

Had a fun thought - maybe you could put an Archon somewhere on this map? It'd give the player an easier time against Malachi's more agressive AI while keeping the undead-horde theme of the level intact.