Bulale_Abali
Although the crown is tempting, the sword may be more useful, you may ask what for, well the sword may be like yamato from Devil may Cry which can cut through almost anything but the true nature of the sword is to separate things both physical and meta physical like the spirit or if someone is possessed it can cut through the demon or even separate an immortal from their immortality. Point aside it can be used to traverse other realms or planets to search for resources and even in the future it could travel to other worlds like marvel Zombies or even other verses like Invincible, Dc, anime or video game worlds but it's just an idea. PS: I recommend that if at some point to the MC helps Thor, Asgard or Odin he asks for Thor's Jarnbjorn Axe since it could cut celestials and was made of Uru plus it has a cool story since it was the first weapon of Thor