Magical Flux

Prerequisite: The ability to cast at least one spell.

Thanks to your training and your improved control on magic you can sense the remain energy of your casted spells and take advantage of this energy gaining the following effects:

• After you use any spell that deals acid, cold, fire, lightning, necrotic, poison, radiant or thunder damage you store some of the energy of that spell to deal on your next weapon attack or your next spell an aditional 1d4 of the same damage type that triggers this feat, the energy last until the end of your next turn.
• You can use your bonus action to empower the stored energy and deal instead 1d8 of the same damage type that triggers this feat, the energy last until the end of the turn you use this bonus action.
• If you have the feat "elemental adept" you can change the damage type of the stored energy to the choiced for the elemental adept feat.
• If a cantrip triggers this feat you can only take advantage of the aditional damage once per turn.