So, chances are, you might have seen Dr. Doom in PvP, or used him yourself, and noticed something mighty OP about his Passive.
Namely, who ever has been struck by fear (Cower), they cannot debuff ANYONE. Of course, this is a HUGE problem if you are up against Doom, as debuffs do kind of help you win battles.
However, the issue is that Cower does not explicitly state that it prevents the application of Debuffs, only that it may prevent you from acting, and that it is a fear effect.
This is rather odd, when every other debuff in the game tells you what it does.
In short, there is a very likely chance that Doom has a bug that makes him more powerful than he should be.
If there are any strong arguments against this, I would be glad to hear them. (And not tear it into oblivion.)