Goron

Heavy Build You count as one size larger when determining your carrying capacity, the weight you can push, drag, or lift, and what mounts or vehicles you can ride.   Natural Armor Your AC is equal to 13 + your Constitution modifier. You can use your natural armor to determine your AC if the armor you wear would leave you with a lower AC. A shield's benefits apply as normal while you use your natural armor.   Rocks Don't Float The dense body of a goron makes it impossible to swim without magical means to do so. Gorons can hold their breath for a number of minutes equal to their Constitution score times 5.   Volcano Dwellers You have resistance to fire damage.   Goron Roll As an action you can curl into a ball or uncurl and stand back up. While in a ball your speed increases by 15 feet, but you cannot cast spells and can only Attack with a ramming attack. This requires you to have moved at least 15 feet in a straight line before the attack and deals 1d4 + Str bludgeoning damage. You have proficiency with this attack, but otherwise it counts as an unarmed strike, and its damage die increases to your unarmed damage die if it is higher.
 

Languages. You speak, read, and write Common and Goron