Good late game SCs?

[Kuritza]

>> The fact that nothing is invincible is truly the best feature of the game.
Sort of a pointless remark, excuse my bluntness of course. SCs may not be invincible, but when a so-called SC cannot beat national troops, he's just not an SC. Thats what I'm saying - astral golems are upkeep-free high-hp astral mages, poison golems are... well, a funny feature, maybe good thugs to raid and poison enemy lands at the same time. But there are not SCs.
I'll pay more attention to poison golems, though... perhaps are better than astral ones somehow. I still doubt they can beat properly blessed jaguars, though.