How do you beat Super Boss fights with no losses?

[lostkiwi]

I'm a warrior on Medium diifculty, so far I've managed zero losses at level 24

My current setup is:
Green Dragons (primary tank). I have enough leadership for 5 of these guys
Paladins (secondary tank, rezzer)
Shaman (healer, utility)
Archmages (Magic Shield, damage dealer)
Inquisitors (damage dealer, rezzer)

This setup has done pretty well for me so far. However in most fights my dragon does quite a significant amount of the damage, I usually open with Fiery Phantoms, and throw a couple of Dragon Dives in a fight as well.

This is meaningless in super boss fights though, because you can't use your dragon. I had a go against the Enormous Spider, and I had quite a number of losses in the first round alone, and that's not even considering the poison damage that I would have in the following rounds.

Usually I can out last normal bosses, by surviving the initial onslaught, thinning out their troups, and in the end rezzing all of my units using Phantom on my rezzers in combination with Mana Accelerator / Magic Spring when they only have a couple of units left. However that strategy is not possible with Super Bosses, because usually they get harder as the fight goes on, on account of throwing out larger and larger stacks.

So, is it even possible to beat these guys with no losses? If so, could someone please give me some advice?

Many thanks