The Chance on Hit can be a liability in 1vs1 PvP or Duals, as it render you unable to attack or move for 9 seconds. This leaves your opponent with an opportunity to either heal, re-stealth, flee or channel a spell. The liablity can be countered by immediately canceling the Bladestorm buff.
This is a great weapon for runthroughs. Warriors — just pull as much as you feel comfortable with, then let it proc away.
Background
This section concerns content exclusive to the Warcraft RPG, and thus is not necessarily canon.
Only one of these powerful greataxes is known to exist. The weapon's blade possesses two rows of diamond-tipped teeth arranged in a manner similar to that found in shark's mouths.[1]
Patch changes
Patch 2.4.2 (2008-05-13):Judgements will no longer auto-refresh and break the effect from this item while its effect is active.