Covenant of wrath

Covenant of wrath is a Theurge class feature which helps Priests to fulfill the controller role.

Covenant of Wrath (theurge class feature)
You gain training in the Intimidation skill. When you use a per-encounter or daily attack prayer or invocation that deals damage, you gain a bonus to damage against each target equal to the number of targets. You gain the prayer Wrath of the Gods: Ⓒ Wrath of the Gods (per-encounter free reaction ✦ strike prayer) Prerequisites: Covenant of Wrath Trigger: You hit a creature with an attack. Effect: +1d6 + [ magic damage bonus ] damage of a type or types determined by your Faith, and the target gains vulnerability to those damage type(s) until they dispel or break the curse. If the target already had vulnerability to one of your Faith's damage types, the target is weakened until they dispel or break the curse.
When you choose an at-will prayer, you may choose from the following options. ◯ Instill Fear (at-will standard action ✦ provoking prayer) Prerequisites: Covenant of Wrath Target: One creature within 5 paces that can see or hear you (Intimidation vs. Will) Hit: You push the target a number of paces equal to your Charisma modifier, and the target grants advantage to your allies until the end of your next turn.