In Damage, Fenrir is the strongest, but in overall, Ultima Weapon is unbeatable.
the strongest blade is the cold rune edge lol jking
Falcon blade
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The Chaos Blade, which you receive in one of the last battles in Muround.
You have to use the blade key that removes from your black smart key. There is a tumbler right next to the release handle, you can use the blade key and open the trunk
To change the key blade on a Peugeot 406, you'll first need to remove the key fob casing by carefully prying it open with a small flat tool. Once open, locate the key blade, which is typically held in place by a screw or a retaining clip. Remove the old key blade and replace it with the new one, ensuring it is securely fastened. Finally, reassemble the fob casing and test the key to ensure it functions properly.
you use a key ring
Depending on your blade - you probably sheared the shear rivets, bolts or key.
Theres something that resembles a Keyblade on Gaia its called the G Blade or Keytarblade. Hope that helps.
You get it after the partner battle wioth Axel.
You can use AZKW-3WJR-YW7L-P9BW.
The Brightcrest