Splitting his workload over a dozen or so clones was all well and good, but in the hours leading up to Jotun's death match, the number of guests arriving at the Inn exploded, leaving him not a moment to spare his attention for anything else.
Lex had to dismiss all his other clones, leaving merely a projection of the Innkeeper in his office to supervise the Inn. His main body had to don the mask of the Invincible Tyrant and appear in the Inn, personally taking action.
Over 100 billion guests had arrived at the Inn, and these were not mortals or Golden core cultivators that had shown up. No, these were all immortals, mainly either from the Jotun Empire or from the Fiery Mammoths galaxy.
The problem with their arrival was that both the humans and the beasts had already suffered a lot during their short war, and tensions were incredibly high. They were ready to fight at the drop of a hat, and the venue for that fight would have been the Midnight Inn.