Pros:
I like the idea and the presentation! Trying to find the perfect setup to beat the dragon is interesting. Unfortunately, it seems very RNG whether a path to victory is generated. This would be a very good product with a few more ways the player could affect the board.
Cons:
The use of the limitation "creation through destruction" is a bit disjointed though present.
Because the way to victory is so random, I felt I had little control over the outcome, hitting my enjoyment a bit.
Great entry, keep it up!
If you have time please give our game a try as well: https://itch.io/jam/mini-jam-179-energy/rate/3368853