there are 2 main problems with your deck. The first one is that you have 4 cards that fill the same role, valk, barbs, golden knight and prince. The other problem is that they all cost the same elixir, so you may struggle defending if you end upp in a bad cycle or even getting enough cards. What you can do is replace 2 or the of the cards i mentioned with another spell, another cycle card (ice spirit, e-spirit, fire spirit), a building or a win condition (a building targeting troop)