It's a really cool concept, but unless I'm missing something it's a bit too dependent on RNG. There were several points where the game forced me into making a bad decision. Otherwise it's really well done.
The options are drawn from the pool, handcrafted for each level, so it's not _entirely_ RNG, but I see you point! It would be interesting to do a remake where you have all the necessary monsters available at all times :) Thank you for playing and interesting feedback!