Hunter: Crippled does not deal extra damage to champions

I've used Lonx Marauder and it only dealt 11 damage on attack, against a champion with -1 def. No other defensive abilities/effects were in play.

 

If the champion has 0 def, it will not trigger despite the attacker having Sunder. It may be the case?

 

It had -1 def before getting attacked.

 

The animation and sound effect triggered? If so, the damage might got reduced by something else.

 

I don't remember it triggering, no. Maybe I wasn't paying enough attention? Doubt it tho. In any case, as I've already mentioned, there were no damage reducing effects in play. I was playing against Zombies anyway.

 

Draksar Beastlord 19 attack hits a Ghern Birthmother which is at -6 defense: 25 damage. hunter crippled did not trigger.