You recite a rebuke of the unholy.
This spell only affects undead and fiends.

All undead and fiends within earshot take 1d12 +20 light damage,
+1d12 light damage per boost from Intensify,
and then must pass a social save or become afraid and terrified of you for one minute.
This fear and terror effect ignores immunity to fear and terror granted by being a mindless creature.

If this spell defeats an undead or fiend, it is annihilated and its body is reduced to ash.

Terrified:
You have disadvantage on rolls to hit,
you have disadvantage on tests of skill,
you must spend your action to dash unless you cannot flee,
and must move as far away as possible from the thing you are terrified of.
If you cannot flee, you must spend your action to try to escape
(ex: struggle to escape restraints, tumble past an obstacle, or push an obstruction aside).