Arcane Power

You crackle with arcane power as you overcharge yourself with magical energy.

For one minute, whenever you cast a spell of 3rd level or lower that deals damage, or use an action to deal damage with a spell of 3rd level or lower that you are concentrating on, substitute the damage dice as follows:

• If you would roll a d4, roll a d6 instead
• If you would roll a d6, roll a d8 instead
• If you would roll a d8, roll a d10 instead
• If you would roll a d10, roll a d12 instead

If you cast the spell using a higher spell slot than 5th, the spell affects spells of one level higher than three for each level of spell slot above 5th. For example, if cast at 7th level, substitute damage dice for all spells of 5th level and lower.

The arcane power can be dispelled by a dispel magic or similar.