Up to 1 minute
Your heart pounds as you begin a litany of fire, blood, and destruction. While you maintain concentration, you can use your action every turn to make a spell attack against a target creature that can hear you dealing 2d6 fire, 2d6 psychic, and 2d6 thunder damage.
If you cast this using a 7th level spell slot or higher, add 1 die for each damage type (3d6 fire, 3d6 psychic, 3d6 thunder damage).
a charred page of a book burned in conflict
Verbus di Bellum