The amount of Insanity generated through multiple spells has been nerfed for Shadow Priests and the class received brand new tier set bonuses for the first tier of the expansion.

Priest

Priest Tier Set Bonuses in Dragonflight

Priest Discipline Class Set 2pc – Power Word: Shield increases the effectiveness of your next direct damage or healing spell by 10%.

Priest Discipline Class Set 4pc – Penance increases the strength of your next Power Word: Shield by 60% of its damage or 18% of its healing.

Priest Holy Class Set 2pc – Casting Prayer of Mending reduces the cast time of your next Heal or Prayer of Healing by 1 sec and increases their Holy Word cooldown reduction effect by 2 sec.

Priest Holy Class Set 4pc – When Holy Word: Serenity or Holy Word: Sanctify finish their cooldown, you gain 10% critical strike chance for 6 sec.

Priest Shadow Class Set 2pc – Mind Blast increases the damage of your next Devouring Plague or Mind Sear by 12%, stacking up to 3 times.

Priest Shadow Class Set 4pc – Devouring Plague and Mind Sear increase your haste by 4% for 8 sec.

All Specs

Mind Blast – Blasts the target’s mind for [ 97.92% 78.34% of Spell Power ] Shadow damage. Generates 8 14 Insanity.

Shadow Word: Pain – Generates 4 3 Insanity.

Discipline

Mind Sear – Corrosive shadow energy radiates from the target, dealing [ 117.9% 253.6% of Spell Power ] Shadow damage over 3 sec to all enemies within 10 yards of the target.

Discipline Priest (Spec Aura) – Decreases damage/healing by 19%. Increases damage/healing by 40%.

Shadow

Mind Flay – Generates 18 12 Insanity over the duration.

Hallucinations – Your successful Dispel Magic, Mass Dispel, Purify Disease, Vampiric Embrace, and Power Word: Shield casts generate 6 4 Insanity during combat.

Void Bolt – Sends a bolt of pure void energy at the enemy, causing [ 100% 180% of Spell Power ] Shadow damage.

Mind Sear – Corrosive shadow energy radiates from the target, dealing [ 117.9% 253.6% of Spell Power ] Shadow damage over 3 sec to all enemies within 10 yards of the target.

Devouring Plague – Afflicts the target with a disease that instantly causes [ 49.04% 63.75% of Spell Power ] Shadow damage plus an additional [ 81.51% 105.97% of Spell Power ] Shadow damage over 6 sec. Heals you for 50% of damage dealt.

Vampiric Touch – Generates 5 4 Insanity.

Auspicious Spirits – Your Shadowy Apparitions now deal 15% increased damage and generate 2 1 Insanity.

Mindbender – Generates 5 3 Insanity each time the Mindbender attacks.