Talk:VPBE/@comment-24710280-20150427063057/@comment-3974211-20150427213900

The effect is essentially "steals 15% attack speed from surrounding champions", but you gain 15% rather than whatever 15% of their attack speed is.

Personally, I think it's a reasonable buff AD Tanks who are currently hiding in the shade of AP/Health Tanks and damage-heavy AD Fighters. A full-tank Jarvan, Rammus, Malphite (who usually plays AP Tank at the moment), etc.