Crude

Intelligence penalty increased from 6% to 9%

Health Restoration bonus decreased from +10/15/20% to +9/12/15%

Base Attack Time Reduction bonus worsened from 8/12/16% to 6/9/12%

Now is a guaranteed option for Strength heroes only

Tiers changed from 4/5 to 2-4

Health Restoration bonus rescaled from +30/40% to +10/15/20%

Now also modifies incoming healing

As a result of Health Restoration changes

Base Attack Time Reduction bonus rescaled from 12/18% to 8/12/16%

Intelligence Penalty increased from 5% to 6%