Shadow priest

Shadow priests of the Forsaken are members of the Cult of Forgotten Shadow. A single shadow priest serves as a bishop for a community. There are also shadow priests among the trolls, they find Forsaken to be kindred spirits, supporting them because they are evil. There are also shadow priests that follow Kil’jaeden.

Priests in World of Warcraft that chooses the Priest talents are called shadow priests.

Group Contribution
Shadow priests are extremely useful in endgame content, providing Replenishment for mana-intensive fights, and group healing for fights that include multiple people taking damage. Also, shadow priests with 3/3 Misery increase chance to hit the target with spells by 3%.

Skilled Shadow Priests with superior gear can also contribute massively to the total healing output in a fight, especially within fights which output a lot of AoE (Area of Effect) damage on to the raid or party group. If played correctly, Shadow Priests can contribute up to 50% of the group's entire healing, just through the effects of Vampiric Embrace.

Threat
Threat is generally not a problem for shadow priests, due to a 30% reduction of threat generation in Shadowform, and the option to temporarily dump all threat with Fade. However, the healing from Vampiric Embrace, coupled with high damage caused can generate more threat per damage than most other classes. In addition, Mind Flay, a staple damage spell, causes additional threat due to its snare effect.