Creatie and Tsar created the multiverse.
I kinda based it off the big bang theory because at the beginning all matter was at one singular point, but eventually exploded to create the universe.
In my version creatie made that matter, and Tsar triggered the explosion. This forced both of them into their crystal forms which basically meant they were in hibernation.
Now, they only created the FIRST universe, after creator got the crystal of creation he made the multiverse