Well, of course, you want to say that they are the strongest. But sometimes, even with them, things can get tough. Therefore, I'll stop at level 3. First of all, the Djinn, Vampire, and Water Elemental (although I don't know what level they are) :) If any of them are present, everything is fine.
Sorceresses, for example, can easily replace Djinns and Elementals with general slowing and stunning magic :)
