Dolorimancy

You channel the pain you feel into strengthening your magic. You have advantage on concentration checks. When you cast a spell while bloodied, you can choose one of the following benefits, each usable once per long rest:

• Make all attack rolls for the spell at advantage.
• All creatures affected by the spell make their saving throws at disadvantage.
• Re-roll and 1 or 2 on the damage dice for the spell and take the new roll.