You can be like Baldr but you choose your material weakness

Mythology Baldr(just read it). Instead of mistletoe, you can change it into anything as long as it still exist on earth. The original material of your choosing will be the only thing to kill you and not by its alternatives. You cannot be poisoned by a soup made of mistletoe juice but you should be stabbed by the wood itself. If you choose an AK-47 bullet as your weakness, you wont be killed by a sword made from the bullet materials of AK-47 but only by the bullets themselves be it fired or stabbed to you. You are also immune to any type of attacks, physical or magical. The chosen material will be your only weakness. Dont even suggest a dead 🌽 star's pussy juice since it doest exist anymore since they're dead.lol