You are prepared to do the skill.

You shove Priest to throw him off balance and while he is down, you add a
sharp kick to the head!
You hit Priest brutally with Stormfall, the infernal double-edged axe of the
Dawning Twilight and
also hit him hard with the backswing with extra efficiency, annihilating
living tissue.
You hit Priest brutally with Black Reaver's Axe and also hit him hard with the
backswing with extra
efficiency, annihilating living tissue.
Priest winces as you assault him and screams in pain.
Your inhumanly cruel onslaught on Priest causes him to collapse upon the
ground writhing in sheer
agony as he begs and pleads for death to save him from the pain!

Congratulations! You have just completed Bladed fury overkill!

Ok.

Stormfall axe screams '..and stay DOWN!'
YUCH, Priest's entrails spill all over the place.

Priest is DEAD, R.I.P.