The Sane and Insane Wormhole Wars

The Sane and Insane Wormhole Wars were two multiversal wars caused by Galaxy. While these are seperate wars set in seperate time periods, they were both wars started by Galaxy which caused crossovers.

The Sane Wormhole War
The Sane Wormhole War was the first Wormhole War started by Galaxy, and happened all the way back in 2000 BC. While most stuff in this war has been forgotten by time, in this war Galaxy attacked the human universe, dropping several characters from seprate universes into the human one.

During the events of this war, the fallen angel Legend was forced to remerge from her cave to save the humans, and dueled with Galaxy in the deep forests. Eventually the humans and the characters teamed up with Legend to trick Galaxy into falling into a portal, however it forever changed human-kind, causing humans to develop into the species we know and love (hate?) today.

The events of this war may be adapted into a roleplay.

The Insane Wormhole War
The Insane Wormhole War will be the second Wormhole War, and will happen in 2019. In this war, Galaxy will form a contract with other villains to attack the human multiverse together, as well as many more universes. This war is shrouded in mystery because it hasn't happened yet, however it will eventually happen no matter how much humanity tries to prevent it. It was predicted by Kitso the Kitsune. The only thing known about this war is that it will start with Galaxy trying to "break the sky, preventing the hybrid from ever happening", however it is unknown who the hybrid or the sky is.

This will definitely be adapted into a roleplay, which will be coming soon.