I came up with an idea for a Morganthe battle. Morganthe could have 30,000 health and her minions would have 3,000 health each. She could also cheat. If you put a blade on, she will remove it and give herself a balance blade. If you put a trap on her, she will remove it and give you a hex. If you try to stun her, she will block it and use regenerate. Well, that's it.
