Arcane Power

You channel arcane energy into yourself or one willing creature you can see within range, increasing its power.

Once on each of the target’s turns, when it deals damage with an attack or spell, it unleashes some arcane power to deal additional damage equal to the damage dealt by that attack or spell.

This additional damage matches the original damage’s types and is dealt to the same targets. It can benefit from existing damage bonuses, including bonuses from spells, class features, and magic items, but it cannot itself trigger another effect that doubles or multiplies damage.

Arcane Power works with all damage types, including acid, cold, fire, force, lightning, necrotic, poison, psychic, radiant, thunder, and bludgeoning, piercing, and slashing damage. It can amplify damage from any source that deals damage, including weapon attacks, spells, magical effects, environmental hazards, and natural attacks as long as it originated from the target.

The spell ends early if you lose concentration.

A creature can benefit from only one instance of Arcane Power at a time.