I disagree with Angel being on D Tier. They actually should be S Tier. For only 25 gold, you can easily put as many Angels on the table and quickly kill enemies regardless of distance even on the hardest difficulty. In fact, you could literally have nothing but Angels (and maybe one or two Shamans for health just in case) and they will completely destroy everything. I hope the developers don't nerf the Angel upon official release of the game.