actually i feel very useful when fighting planar tomb3 boss as a warrior, especially last season
and if sts ever release another boss that move can't be easily kited like t3 boss and hits hard like him, warrior will be a lot more useful than a mage which has most (or sometime, all) of their disabling skills don't work against boss
anyway, with this weapon, warrior gets what they were asking before, a pve only buff, sadly it heavily depends on gears....