This rune effect creates a tremor that remains in place for 2 seconds, considerably debuffing the speed of all enemies who pass through it.Patch v1.0.4 slightly reduced the proc chances of this effect.  ==Post-Release Changes==[[Patch 1.0.4]] buffed the base skill but reduced the [[proc]] chances for [[The Devil's Anvil]] from 100% to 80%. v1.04 changes: [http://diablo.incgamers.com/blog/comments/official-patch-1-0-4-notes]* Hammer of the Ancients**Weapon damage increased from 200% to 325%* Skill Rune – [[The Devil's Anvil]]** Proc coefficient reduced from 1 to 0.08