Might of the Storm Giant

You’ve manifested some of the power of storm giants, granting you the following benefits:

• Increase your Strength, Constitution, Intelligence, Wisdom, or Charisma by 1, to a maximum of 20.
• You gain proficiency in Arcana, Athletics, History, or Perception.
• You gain resistance to lightning and thunder damage.
• As an action, you can hurl a bolt of lightning at a point you can see within 120 feet of you. Each creature within 10 feet of that point must make a Dexterity saving throw (DC 8 + your proficiency bonus + your Wisdom or Charisma modifier [your choice]). On a failed save, a creature takes 5d8 lightning damage, or half as much damage on a successful one. When you reach 17th level, this damage increases to 6d8. 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.