How do I become a "No loss" Player: Tips needed

[BB Shockwave]

Originally Posted by Elwin

Never pick units which u cant restore like black dragons. Well if u gat black dragon in early game its awesome but in late game they will be only a burden.

Hmm, cannot Rune Mages resurrect Black Dragons? Frankly, I did my No-Loss with Blackies in TL only, where I used Time Back to raise them, and Orc Shamans to heal them (yes, Spirit Axes actually heals them, as does Gizmo).