Dark Coven's Regalia

2 pieces: (2) Set: The critical strike chance of your Shadowbolt, Incinerate, Soul Fire, and Corruption spells is increased by 5%.

4 pieces: (4) Set: Each time your Immolate, Corruption and Unstable Affliction spells deal periodic damage, you have a 15% chance to gain 10% damage done by you and your pet for 10 sec.