[Edi]

Bane Lords, Air Queens, Water Queens (if underwater), Fire Kings, Anthrax especially if you can get him, the Earth Kings, Tartarians. That's the basic non-blood super combatant selection.

For blood SCs, Ice Devils, Arch Devils, Fallen Angels, Heliophagi, Demon Lords. I'm not sure if Vampire Lord is SC or thug, but you just can't go wrong with them.

Living statues are always good, so are wights, gargoyles may or may not be useful, Fire Snakes, Lamias, Lamia Queens, Faerie Court.

Almost everything is useful when you combine it with the right stuff, but of course most stuff also has countering combos, so if you guess paper when your opponent takes scissors, you get confetti...

In high magic multislayer, conventional troops play a very small role. Some might be useful throughout, but by the endgame, SCs tend to rule the map.

Edi