"Might vs. Magic"

Imbalance occurs when a Solmyr of approximately level 10 is released, which can happen even in the first week. At the start, with 0 magic, the heroes will perform adequately, but they won't be decisive in 100% or even 90% of cases. Aislinn is, of course, good; she helps overcome difficult obstacles early on and provides support against rushes. What else is needed? Solmyr performs well.

So, option 3 is conditionally imbalanced.