Storm Sorcerer Additional Spells

Whenever you gain a sorcerer level, you can replace one spell you gained from this feature with another spell of the same level. The new spell must be an evocation or a transmutation spell from the Druid, Sorcerer, or Wizard spell list

1st Level Absorb Elements, Fog Cloud

3rd Level: Levitate, Shatter

Charisma is your spellcasting ability for these spells, and you cast them with any available spell slots.