Elemental Armour

For the duration, you gain a +2 bonus to AC. You also choose what it is formed of, out of acid, cold, poison, thunder, fire and lightning.

As a bonus action, you can decrease the bonus by one to make a ranged spell attack to a creature within 90 feet. On a hit, this attack deals 1d10 damage of the damage type you chose during the casting.

At higher levels, the bonus increases by 1 for each level above first