Spellfire Adept

Source: FRHoF p. 41

Prerequisite: 4th or Spellcasting or Pact Magic Feature

You gain the following benefits.

Ability Score Increase. Increase your Intelligence, Wisdom, or Charisma by 1, to a maximum of 20.

Fueled Spellfire. Once per turn, when a spell you cast deals Radiant damage, you can expend up to two Hit Point Dice, roll them, and add the total rolled to one damage roll of the spell.

Searing Spellfire. When you make a damage roll that deals Radiant damage, it ignores Resistance to Radiant damage.