Should I take the Wisdom skill?

...In the end, no matter how I combined the other skills, magic was often lacking, and the longer the game went on, the more noticeable this became...

Conclusion - you need to finish the game faster - then wisdom won't be needed either :D. But seriously - if you want to play as a mage on small maps (S, S+P, M), why not? But a warrior will finish it faster, and prolonging the game to learn the necessary magic is pointless.

There's also a lollipop and a cloak.

Sometimes I even put it on specifically so that some wise guy doesn't get in the way.

Regarding skills - in principle, I also try to take a new useful one, while it is desirable to have a couple of underdeveloped skills, because if you max out several skills to expert, then at the next level you get such a useless choice that if you could, you would refuse the level up. The only thing is that sometimes I doubt - should I take a new skill, say, tactics or logistics, or increase the existing school of magic to expert and next time get something like Eagle Eye.