The half-dragon gains blindsight with a radius of 10 feet and darkvision with a radius of 60 feet.
You have resistance to cold damage.
Once you reach 3rd level, you can cast the fog cloud spell once with this trait, and you regain the ability to do so when you finish a long rest. Charisma is your spellcasting ability for this spell.
If you fail a saving throw, you can choose to succeed instead. You can use this feature once. You regain use of this feature after a long rest.