You might want to think about different ways of increasing the difficulty other than lowering starting energy (or even replace ultima with the no cost +1 yellow guy so its like you lose 1/2 an energy), since playing on 1 energy at the start feels really rough. Really excellent synergy design, I found myself playing 3 games back to back so I could try new things. Enemy design was interesting and varied which was good. However the enemy that does +2 armor, slam, +2 armor could lead to a never-ending stalemate if the player does an average of 4 damage per turn, and can heal or block for more than 2. An option to increase animation speed (or just a default increase) would be nice to make combat feel a little snappier. Overall really fun game, well done!
We really like the idea of giving Charge in harder ships. First, we would like to give a really hard challenge and see if it is possible :) In previous update, players achieved to finish it with Sparrow, but we are looking forward to see it again with new update.
We just released a new features and balance change. Please let us know if you try them!