Gift of the Air Elemental

You’ve manifested some of the power of air elementals, granting you the following benefits:

• You gain resistance to lightning damage.
• You can take the Dash action as a bonus action. When you use this feature, you also gain a flying speed equal to your walking speed and can hover, until the end of your turn. You fall if you end your turn in the air and nothing else is holding you aloft. You can use this feature a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.
• While you are grappling a creature, you can use your action to fling the creature up to 20 feet, in a direction you choose. If a thrown target strikes an object, such as a wall or floor, the target takes 1d6 bludgeoning damage for every 10 feet it was thrown, and is knocked prone. If the target is thrown at another creature, that creature must succeed on a Dexterity saving throw (DC 8 + your proficiency bonus + your Strength modifier) or take the same damage and be knocked prone.