Form of Water

You become a surge of elemental water. Until the spell ends, you gain the following benefits:

• You have resistance to bludgeoning, piercing, and slashing damage from nonmagical attacks.
• You can move through the space of other creatures and ignore difficult terrain; the first time you move through a Large or smaller creature, it must pass a Strength saving throw or be knocked prone.
• You can use your action to unleash a blast of water 15 feet long and 5 feet wide extending from you in a direction of your choice. Each creature in the line must make a Strength saving throw. A creature takes 5d6 bludgeoning damage and is knocked prone on a failed save, or half as much and isn't knocked prone on a successful one.