I have a big problem here. I am not able to hit the mage even once, not to mention killing her in time. So I accepted I will have to deal with the portal. The problem is that it's a riddiculous fight. There are a bunch of fire and greater fire elementals, which can be hit only with +3 weapons. Summons are a little worthless, because they die instantly. My main tank is able to tank for quite a while, but even Durlags Goblet runs out, if I'm able to kill the enemies only super slowly.
How do I get past this?
Charname is Cavalier. I got Corwin, Glint, M'Kiin, Viconia and Baeloth.