Shadowform

Assume a Shadowform, increasing your Shadow damage by 15%, reducing all damage done to you by -15% and threat generated by -30%. 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 100% increased damage and grants Devouring Plague and Vampiric Touch the ability to benefit from haste.