Run at high speed towards a party or raid member, removing all movement-impairing effects upon you, intercepting the next melee or ranged attack made against them and reducing their damage taken by 20% for 6 sec.
Not sure how you'd get the impression that it doesn't do that. It does break roots.
---------- Post added 2012-09-11 at 03:32 PM ----------
It's balanced around level 90 when you can run to your banners.