Reaction, which you take in response to taking damage from a creature that you can see within 60 feet of yourself.
The creature that damaged you is momentarily surrounded by green flames. It makes a Dexterity saving throw, taking 2d10 Fire damage on a successful one.
Using a Higher-Level Spell Slot:
The damage increases by 1d10 for each spell slot level above 1.
Briefly surrounded by silvery mist, you teleport up to 30 feet to an unoccupied space you can see.
Channeling the chill of the grave, make a melee spell attack against a target within reach. On a hit, the target takes 1d10 Necrotic damage, and it can't regain Hit Points until the end of your next turn.
Cantrip Upgrade:
The damage increases by 1d10 when you reach levels 5 (2d10), 11 (3d10), and 17 (4d10).