Need help - I am screwing up (again)

[baboune]

Ok, here is the situation, I am playing Tien Chi in a MP game. We are still in the early game (something like turn 16~). I (stupidly) decided to attack my neighbors because we each fought a battle in a province, and I ended up killing his army. I managed to grab 1 province, and advanced to the other two he had. In each there is a castle. so I went in with two army Groups, captured the two provinces.

Now here comse my problem. The neighbor is C'Tis and he is using a Saurolich with 20 Protection and an enchanted Trident. The Saurolich by himself managed to defeat all my armies, something like 50 Heavy infantries, 20 light infantries, 20 militias, 20 Archers, etc., numerous mages and heroes and in the process killed my pretender.

I tried to script spells based on Fire, but the Saurolich almost always attacks with 1-2 Swamp guards, so I end up casting all my scripted spells on the stupid units that he uses as decoy. And then the available mages after casting all scripted spells start casting things like Decay or somethign that has no effect.

I am trying to equip one of my leaders with a lot of magic items to increase his protection and give him a Fire sword. Maybe that will help.

What should I do? Or what can I do?