Arcane Overload
Source: Arcana Unleashed
Origin Feat
You gain the following benefits.
Cantrip. You learn the Fire Bolt cantrip. Intelligence, Wisdom, or Charisma is your spellcasting ability for this spell (choose when you select this feat).
Power Surge. When you cast an Evocation spell and deal damage with it, you can add your Proficiency Bonus to one damage roll of that spell. Once you use this benefit, you can’t do so again until you finish a Long Rest.