Ok I really hate to sound rude, but Pyroak should be fixed ASAP. It is fucking ridiculous when my success in arcade mode (Sweatin' mode) is directly proportional to how many times he spams his special attacks.
I can't beat him. If I jump he spams Wood Hammer/Flamethrower. If I try staying on the ground he spams energy ball/ember. He seems to take negligible damage from any attack, and he can deal insane amounts of damage thanks to being able to combo out of almost any attack. For example he managed to do: Punch, Fireball, Fireball, Fireball, Wood Hammer.
He is pretty much a defensive beast, with Revenekah's power. He also has projectiles. He just really saps the fun out of Arcade mode.
Remember that I am only talking about the CPU-Pyroak. I have no idea how good he is when controlled by a human, because human players actually have to spend time charging the attacks and thus are unable to spam them. He reminds me of Street Fighter IV's Seth who was pretty much the cheapest fucking CPU opponent ever.
The game is really fun otherwise. You just need to fix that one character. You could probably just dumb down his AI for now until you find a way to make it so that he has to charge up his attacks.
Again I apologize for the harsh criticism. I am just really frustrated from playing Arcade mode.