They are three powerful servants of Abaddon. Let's ignore the game data.
For the lich, he is clever for a villain(after become lich), and did not show much power during the game, he let us to fight for him, he got the scepter of Orr and unlock the gate without fight anything, and even with tons of Titan's help,he still got killed by players. I guess he was just a powerful necromancer.
Shiro Tagachi will be the most powerful one since he can build a terrible spirit+afflicted arm and control a mighty dragon all by himself, and took the greatest heroes of Cantha to kill him.
For our Warmarshal Varesh, all she did is call her master to give her new toys, well she was hot but the weakest one. I just don't know why Abaddon did not give the lich and shiro order to open the Realm for him?
S

