Blizzard added a Covenant Ability for Dracthyr Evokers in the latest Dragonflight Alpha build.

Evokers will be available in the Shadowlands pre-patch for those who pre-order Dragonflight. The class didn’t exist before, so they had to add a new Covenant Ability for Evokers. It’s called Boon of the Covenants and it restores health and increases Versatility for 12 seconds. The passive component increases all damage and healing by 4%.

Boon of the Covenants – restoring [ 600% of Spell Power ] health and increasing your Versatility by 10% for 12 sec.

Passive: The Covenants have granted you a portion of their power, increasing your damage and healing by 4.0%.

(Instant cast, 2 min cooldown)