The warmonger corruption does need a nerf the fact that the corruption damage gets increased the more allies there are against people make it too powerful against commander because pike-men contribute to that damage not just other heroes. If anything the commander shouldn't be able to be corrupted because if that happens then there's nothing the other players can do to stop the attackers from swarming him while he is corrupted. The amount of damage corruption does when allied pike-men/foot soldiers are nearby needs to be lowered. I used the warmonger and did this strategy myself and see it as too over powered when allied pike-men are near I killed a Black Prior in seconds when I corrupted him. I attacked him with corruption blade and in seconds he died due to being surrounded by his own pike-men. The amount of damage the commander takes is way to punishing because he got corrupted when I was defending and my team could do nothing as he died from the attackers PLUS the pike-men in the corruption zone.

The warmonger needs a balancing out and quickly too. I think that her bleed attack from the parry is fine, and if anything for being a vanguard instead of rush or conqueror (There's barely a change in capture speed with the conqueror feat(s) so its not as useful) give the standard vanguard feat of body count because she is a vanguard.