Asmodeo is sick unit, if you play him 100% solo or great support if you use him allot with you`re army. But if you only use him form time to time, he`s not very interesting.
http://forum.1cpublishing.eu/showthread.php?t=23658 read this tread, many posts on Asmo subject and try to figure what to do with him.
And for -15% lds, it is worth it, because later on certain lvl you can `use` (release) him for price and not wear item, but have him in army all time.
On same subject, did any1 go all Asmo solo, i just wonder how sick can he get (i`we read 52lvl Asmo, with 4kHp . . . ) ? Any pic, or stats info pls.