Chaos Racial: Protector

You have mastered using your shell to protect yourself and others better. In addition, you gain the following benefits:

• Your natural armor trait now provides a base AC of 18. As normal, your Dexterity modifier doesn’t affect this number.
• As a reaction, when you are forced to make a Dexterity saving throw, choose any number of creatures within 5 feet of you. Each chosen creature is considered to have half-cover against any harmful attacks or effects while within 5 feet of you until the start of your next turn. Once you use this ability, you can’t do so again until you’ve finished a short or long rest.