race features:
Cold Resistance: You have resistance to cold damage.
In-Organic Nature: You don't need to breath.
Open for the Vacuum: At 3rd level, you can cast the Silence spell once with this trait as a 2nd-level spell and you regain the ability to cast it this way when you finish a long rest. At 5th level you have 2 uses of Silence, 3 uses at 7th, 4 uses at 9th, 5 uses at 11th, 6 uses at 13th, and 7 uses at 15th. Constitution is your spellcasting ability for this spell.