You gain the following benefits.

Ability Score Increase: Increase your Constitution, Intelligence, Wisdom or Charisma score by 1, to a maximum of 20.

Disintegrate Armor: Once per turn, when you hit a creature with an attack that deals acid damage, or when a creature fails a saving throw against one of your spells that deals acid damage, you can reduce that creature’s AC by 1. This effect can stack with itself.

Caustic Blood: When a creature hits you with a melee attack, you can use your Reaction to spend and roll one of your hit dice. If you do, the attacking creature takes acid damage equal to the result of the die + your Constitution modifier.