Conductive Hydromancer

You have learned techniques to direct lightning spells through bodies of water, gaining the following benefits:

• You learn the create or destroy water spell and can cast it once without expending a spell slot or providing material components. You regain the ability to cast this spell in this way when you finish a long rest.
• When you cast a spell using hydromancy, you can treat any bodies of water that are less than 10 feet apart at any point as a single body of water.
• When you cast a spell that deals lightning damage, it gains the hydromancy tag with a hydromancy radius of 30 feet.
• Once per turn when you deal lightning damage to a creature with a spell cast using hydromancy, you can cause it to take an additional 1d8 lightning damage, or 1d12 lightning damage if the creature is submerged in water.