I had a guildmate hit me roughly 40 times with this weapon and the leeches went off ZERO times... The odds of it going off are over 200% per swing so since no leech went off at any time it's broken. I know the stamina / mana leech properties give off a noise so I assume Fatigue & mana Drain do as well, but my stamina & mana never dropped once after being hit. (I was taking about 20 dmg.) PS.. this drops from the CHAMP @ the Abyssal Inferno spawn.