[Meglobob]

I have found spring hawks to be excellent against Helheim. The armour negating lightning swarm attack cuts through glamoured troops like a knife through butter.

Due to the expensive nature of glamoured troops generally, probably worth the gem cost.

Corpse Man Construction is good, with lightning rod 5E gems you get 4 for 1A gem, staff of storms 6/1A gem and Igor Knohelms Tome + staff of storms 16/1A.

The really great thing about corpse men is the 100% SR (little frankinsteins), so they can survive on a battlefield with wrathful skies for example. The mindless, 100% CR, 100% PR also create other interesting possibilities. The high hps 20 and poor amphibian are a great bonus too. Cheap and nasty. Useful the entire game.

Remember the Vine Ogre spell cast by Ivy King, equipped with treelords staff+Ivy Crown/Crown of the Ivy King becomes a fantastic conjuration for 2N gems. Take advantage of there mindless and 100%PR to turn them into a more destructive army than just meatshields.