Not really think here's a lvl 1 feature
Living weapon
At 1st level, your soul has been trapped within a simple or martial weapon of your choosing. You retain any bonuses or features of your race, and are still considered to be of that race and type. You gain immunity to poison and disease, you do not require food, air, or water, and you no longer age. You have the same AC as your wielder, and you can use the higher of your Dexterity modifiers to calculate their AC. Whenever your wielder takes damage but you do not, both you and your wielder take half the amount of damage instead. You can regain hit points as though you were a living creature. Your walking movement speed is 0, and can’t be increased.

You count as a magical weapon for the purposes of overcoming damage resistances and immunities, and grant proficiency in simple and martial weapons to your wielder. You are not considered a magical weapon for the purposes of spells like elemental weapon. Additionally, your spells’ somatic components are replaced with “visual” components, where you visibly flare with magical power. You count as an arcane focus. Your bearer must have at least one hand touching you to enable you to cast a spell with a range other than “Self” or “Touch”. The one exception to this rule is mage hand, which you learn when you choose this origin.

If your wielder acts against your wishes, you can choose to attempt to force them to obey you. Your wielder must make a Wisdom saving throw against your sorcerer spell save DC. If they fail, they perform the action as you desire during their next turn. If they succeed, they are immune to this effect for one minute or until they take damage.

You can communicate telepathically with your bearer, and with any creature that speaks a language within 60 feet of you. This telepathy is two-way, but otherwise you cannot speak.Whenever your bearer makes a skill or ability check, you can choose to make the check in their stead.

If you exit this form, as though by the spell polymorph or the Wild Shape feature, you lose these restrictions and benefits until you return to normal.