For reason Michael weapon is:
- Excalibur Collbrande. A sword that glow it blade to determined the rightful, crowned, monarch king. Leading the people to the future, but will disgrace or honor follow him? Fate grooms the once and future King for his throne by summoning ever more horrible despair to challenge him every time he triumphs over it.
This is how Michael wished to be a King in the futureInitial form;
Second Form, which is Collbrande form:
- And Carnwenhan, The dagger which summon fourth light when the dagger is used.
When he combine his Sword and his dagger, it become the Legendary Sword of Elements, Tetrastreamer.
Fire, water, earth, wind—these four elements coalesced to form the world as we know it. This rainbow-colored blade is capable of unlocking the secrets of creation, allowing the wielder to control them at will.
(Info and Assets of the weapons is from cygames Granblue fantasy and GBF wiki)