Well a lot can be changed.. you could easily make him have 100 HP, no regen, 4 misc slots, only AoE 1 devour, higher or lower prot and of course.. higher price. And he fits the anti-SC role perfectly (it's what that attack is for you know). You could also make an "Old man of the Desert" unique with these more powerfull stats.
Desendant of Jormungandr: aquatic sea serpent of immense size and power.
Generic Beholders are a nice option too btw, can have all sorts of attacks etc. Not something for full slots though.
I know you all have something against using DnD stuff but really stealing idea's form dnd is exactly the same as stealing them from mythology (where dnd gets most of their idea's too in the end.. it's just naming after that)
Some sort of merman titan, with a water and a landshape, a nice powerfull trident and an enchanted net.
Does death already have a Cerberus summons.. would probably need to be unique but could be very nice. Might even be blood or nature though.. it only guards the gates to the underworld it's not undead as far as I know.
Personally I think the phoenix should get a non god version (and an upgrade at that)
Nature could have some sort of unicorn riding nymph or elf/fae lord. Combining power, abilities and extra attacks of the unicorn with full slots.
For astral some sort of strange void monster could be an option, based on the Cthulhu mythos maybe?
Anti SC summon but not a SC it self could also be a summons of a huge number of small creatures with a AoE 1, AN 1 dmg attack. An army could easily kill them, but a SC with a limit on his attacks would have more problems with that. (could be and army of ghosts, insects, small devils whatever you want for whatever path aoe to avoid def and AN to avoid armor is the key here.)
Of course you can just get mansized and formed heroes of high strenght. Real human heroes and mages. Archmages, master archers, master shinobi, mercenaries, the best gladiators. Stuff like that would fit Dominions 3 well I think since they are basicly most about humans and humansized pplz. With nice one battle spells and stuff.
PS I think were spells would be a good idea but you can't morph the caster and you can't pick different form.
Then again a spell were dragon would be nice you'd cast it on a random peasant (meaning no troop or commander disappears) and he'd be a normal or other sort of infantry (but as commander so he could have items) at start of battle but with a 2nd form of a dragon when killed, that would give some suprises.
Ow and for blood the best idea's are I think the not original sorts of vampire lords with multiple forms from some of the mods that already exist. Even more demons and devils isn't the answer at least.
A new horror might be fun though
