Frost Giant's Might

Your Giant Ancestry gives you the following benefits: 

• Increase your Strength or Constitution score by 1, to a maximum of 20.
• When you hit with an attack using a simple or martial weapon, you can roll one of the weapon’s damage dice an additional time and add it as extra damage of the weapon’s damage type. Once you use this ability, you can’t use it again until you finish a short or long rest.
• You can use Stones Resistance to become immune to cold damage until the end of your next turn.