The Focusing Stone

A mysterious giant meteorite that contains massive amounts of the magical Element 115, a material sent to disrupt earth by the dark ones, that was inside a timeloop in the Shangri-La pyramid.

Season 3
A strange man would somehow solve the puzzle reducing it to rock size and obtain it, seeking to use it for his own benefits. Unbeknownst to him, he would need another piece of the puzzle, the Vril Device, to make it work, and he instead ended up accidental using the power of the stone to merge himself with his idealized self, becoming The Abomination. Sometime later, a Japanese man involved in solving a series of murders would befall the same fate while trying to return his friends to save his friends, only merging with his own theory of himself being the culprit instead.

The stone was taken by a man with the mission to cross the dimensions and save all the multiverse from destruction of the dark ones, The Apothicons.