Blazing Vengeace

In battle, your arsenic savagery takes hold. On your turn, you can enter blazing vengeance as a bonus action.

While in a blazing vengeance state you gain the following benefits if you can see the character you mark for revenge:

• You have advantage on Dexterity checks and Dexterity saving throws.
• When you burn a spell slot to cast a spell that deals fire damage you can add your Intelligence modifier to your spell save dc, spell attack bonus, and fire damage it deals on hit. (If you already have your Intelligence modifier added to your spell save dc and spell attack bonus add it again like expertise).
• gain resistance to fire damage.

In blazing vengeance state the dc for concentration checks is doubled.

Your blazing vengeance state lasts 1 minute. It ends early if you are knocked unconscious or if your turn ends and you haven't burned a spell slot to cast a spell with fire damage or taken fire damage since then. You can choose to end blazing vengeance on your turn as a bonus action.

You can use blazing vengeance once per long rest.