Damage shield damage nerf

Boo to nerfage. Feels like another PvE nerf because of PvP. =(

The bonus damage from spell power on the Druid ability Thorns has been reduced by half.

The bonus damage from spell power on the Paladin ability Retribution Aura has been reduced by half. The threat generated by that damage has been doubled per point of damage to keep the threat generation about equal to before.