my problem with her is that she is overpowered - since i took her from the sunken flagon where she was washing dishes to amend for her destructive behavior

she does most of the kills in my party, the others only serve as bodyguards who shield her so she could do her fire/acid spells...i didn't need to think about battle tactics anymore i admit it's a bit boring

the craziest is her fireball spell - she can cast it in the midst of my party fighting in close combat - only the enemies got hurt, my other party members, being in the epicenter of the explosion remain unaffected.

so my question is will the battles became more difficult, or with her battle always will be so easy? and are there other overpowered npc's in the game? i am currently in the end of act i