Just so you know I will NOT help out Nintendo players cuz they got completely different games but I might be able to help a few of em cuz I got a Nintendo with mostly Pokemon and Zelda games
Assassins Creed Valhalla Help + more games

nope not a thing about assassins creed black flag
I only own 3 assassin Creed games but 1 of them are so old that I bought it for a ps3

I think you can get any UBISOFT game for free if you got PS+ because that's how I got Valhalla wait a second oh I spent Like $50 on mirage when I could've gotten for free... GOD DANG IT.
Anyways I'm working on getting mjonir in ac Valhalla once I kill everybody in the order

but if you guys have assassins creed Valhalla and want any mythical weapon in early game then I shall recommend the blazing sword but you have to be in England, its a short sword that when your locked onto a target and use a light attack it will shoot like a energy slash at the enemy dealing good damage but you have to make it to the end of 5 tombs and collect 4/5 of the Armour you get the last piece at the hidden tomb after getting the artifacts that are hidden at the ends of the tombs. If you've already killed the whole order and need a good boss killing weapon then I recommend mjonir or Odin's spear but for Odin's spear you gotta complete the main game but there is a glitch with a fishing rod to help you get the spear really early by phasing through the ground by doing like a dive then mid air equip your fishing rod and eventually you'll phase into the area with Odin's spear. Oh also for mjonir you have to kill 3 these 3 ugly witches and collect 4/5 of Thor's Armour, I'm still working on killing everyone in the order but I think you get the 5th piece of Armour after killing everyone in the order and doing like something after that then you gotta find mjonir.
If you guys need any help with like games like assassin's creed or more I could probably help you out just chat in this group and I'll be here to help y'all out just I won't talk on the weekends.