Applying the Sinful Brand to a target and extending the duration with Eye Beam (with Blind Fury talent) using the Venthyr DH legendary is resulting in a ~17sec debuff on the target. If you then use Metamorphosis right after, on that target, the debuff will reset to it’s original 8sec. This makes the opener / gameplay of Venthyr DH awkward.
In my opinion, Meta should apply another 8 sec of Sinful Brand to the target, or at least not reset the current debuff.
I believe that fixing this problem would bring much more diversity to the covenant choices of Havoc DHs.