30% of all damage taken by party or raid members within 30 yards is redirected to the Paladin (up to a maximum of 150% of the Paladin's health). Lasts 10 sec.
Divine Sacrifice is a Paladin ability, you will need to spend 11 points in Protection to get it.
Patch changes
Patch 3.1.2 (2009-05-19): Damage done to the Paladin while this is active will no longer cause the effect to break early, and if it is dispelled or canceled early, the damage counter will reset correctly the next time the spell is cast.
[Divine Guardian]
Patch 3.1.2 (2009-05-19): Damage done to the Paladin while this is active will no longer cause the effect to break early, and if it is dispelled or canceled early, the damage counter will reset correctly the next time the spell is cast. 
