Homebrew
You are a Construct.
Your size is Small or Medium. Most runitek are built between 3 and 8 feet tall.
You can see in dim light within 60 feet of you as if it were bright light and in darkness as if it were dim light. You discern colors in that darkness only as shades of gray.
Instead of sleeping, you must speed 4 hours in an inactive state in order to complete a long rest. During this time you make all perception checks at disadvantage and have disadvantage on initiative checks.
You were created to have remarkable fortitude, represented by the following benefits:
While you’re not wearing armor, your base Armor Class is 16 + your Dexterity modifier. You can still benefit from any bonuses from a shield.
You have resistance to bludgeoning, piercing, and slashing damage.
You have advantage on saving throws against spells and other magical effects, as well another persons magic cannot change your form.
Runitek have protective spells carved into your design and creation, you know the resistance cantrip. Starting at 3rd level you know sanctuary spell, and at 5th level you learn the spells pass without a trace and warding bond.
Your spellcasting modifier for these spells is Wisdom, Intelligence, or Charisma having as many uses depending on the ability you choose with the minimal of 1. You must finish a short or long rest before using this again.