[Fantomen]

My new favorite is this:

GoR:ed or possessed seige golem with stymphalian wings.
Flying, trampling, mindless (can't be mind hunted etc), fear, all resistances to boot (this is a big big deal) , 0 enc, 24 base protection (much more with the armor), turn 1 attacker (hard to counter with any mage or teleporting thug that needs a turn or more to buff)

Rest of the slots (head, feet, 2 misc) are optional depending on situation, but I generally put something that grants an extra attack (stone bird, serpent etc) to counter other large thugs. But it doesn't rally need anything but the wings to kick ***. The relative effectiveness to cost decreases with more equipment, better to field more of them instead.

The beauty is in the cheapness, as ma or la Ulm you can easily field dozens, and they can take any pd or small army.

Plus they can fly ahead of an army to break the walls of a castle. Perfect to combine with almost any battlefield effect as they are immune to most, fatigue spells, acid, all elemental damage, destruction, iron bane etc.

Then we have possessed storm demons for LA ulm, now those kick serious ***.