they need to get rid of mana drain pvp. at least until there are mana heals spam to make up for them. its just way too powerful especially now, and always has been a game breaking ability when its been viable at all.
The writing around him tells us he's a great warchief, but his actions don't match it.
For example, on the blimp ride to Twilight Highlands, he sends his air defenses after the Alliance, leaving the blimps open to attach by Twilight Dragons.