Born of the Current

Your inherent elemental attunement strengthens, improving your innate abilities:

• Your acid resistance becomes immunity.
• Create or Destroy Water is cast at a higher level, depending on your character level.* Constitution is your spellcasting ability for these spells.
• Your swim speed is doubled to 60ft.

*The level at which this spell is cast increases when you reach 5th level (2nd level), 11th level (3rd level), and 17th level (4th level).

Adapted from IceGenasi