- June 28, 2013, 12:36 a.m.
Note that the current Drums of Rage you're seeing are a non-final version. The Drums will provide a 25% haste buff, not 30% -- this really is not terribly different from Runescrolls of Fortitude, Drums of the Wild, or other similar tradeskill consumables that provide slightly weaker versions of core class buffs.
You should still prefer to have a Shaman, or a Mage, or a Hunter, versus a Leatherworker. But in a pinch, it's better than nothing.