Shadowform

Assume a Shadowform, increasing your Shadow damage by 15%, reducing all damage done to you by 15% and threat generated by 0%. However, you may not cast Holy spells while in this form except Cure Disease and Abolish Disease. Grants the periodic damage from your Shadow Word: Pain, Devouring Plague, and Vampiric Touch spells the ability to critically hit for 15% increased damage and grants Devouring Plague and Vampiric Touch the ability to benefit from haste.

Shadow damage you deal increased by 15%. All damage you take reduced by 15% and threat generated is reduced by 0%. You may not cast Holy spells except Cure Disease and Abolish Disease. Grants the periodic damage from your Shadow Word: Pain, Devouring Plague, and Vampiric Touch spells the ability to critically hit for 15% increased damage and grants Devouring Plague and Vampiric Touch the ability to benefit from haste.