Siege Mage

You are adept at causing immense collateral damage. You gain the following benefits:

• Increase your Constitution score by 1, to a maximum of 20.
• Spells you cast deal twice as much damage to objects and structures.
• You can load and aim siege equipment with the same action, and can add your proficiency bonus to attack rolls made with siege equipment.
• If you don't move during your turn, you gain +1 to your AC until the start of your next turn.