Elemental Affinity

Prerequisites: The ability to cast at least one spell

You gain better control over your spells and the elements. You gain the following benefits:

• Increase your spellcasting ability score by 1, to a maximum of 20.
• Choose a spell of up to Level 5. You can, as a bonus action, change the damage type from this spell to Fire, Cold, Lightning, Acid, Thunder and Poison.At level 17, you can also change the damage to Force, Radiant, and Necrotic.