The Mystic Sword

The Mystic Sword is a conceptual weapon created by the leader of the Mystic God name Harmony for the purpose creating this for dealing with powerful beings and fixing realites. While this is not a normal sword, the Mystic Sword is use for emergency that is capable of killing beings that has immortality and it can create portal to travel to different universes and dimensions. The Mystic sword also can fix the entire multiverse, repair timeline, and holds hidden potential in it.

Weakness

Upon overusing the Mystic Sword too much, there is a risk that the sword will lose energy and could wear off if one of each members of the Mystic Gods use it too many time in the battlefield. The sword could break or won't be usable in battle making the Mystic Sword useless.