Lizardfolk

Bite. Your fanged maw is a natural weapon, which you can use to make unarmed strikes. If you hit with it, you deal piercing damage equal to 1d6 + your Strength modifier, instead of the bludgeoning damage normal for an unarmed strike.   Hold Breath. You can hold your breath for up to 15 minutes at a time.   Natural Armor. You have tough, scaly skin. When you aren't wearing armor, your AC equals 13 + your Dexterity modifier. A shield's benefits apply as normal while you use your natural armor.