If you also counted the bonuses from the "World Tree's Favor," it was essentially equivalent to a simplified version of the World's Son template!
This was exactly what Lis coveted the most.
Although he was unsure if the effect of using the World Tree New Bud would be as good, he couldn't reconcile not trying it out.
However, the World Tree New Bud was one of the most important treasures of the Elf Clan, even more important than a typical Legendary Strongman to them. Apart from the one that later appeared in the Elf Kingdom's Jonor City, Lis could not think of any other way to obtain this treasure.
He had to go and try, and the World Tree New Bud was discovered sometime after the destruction of Jonor City; the reasons for its appearance there were unclear to the Elf Kingdom as well.
Therefore, Lis felt he had a good chance of getting his hands on the treasure ahead of others.
At the same time, there were other purposes for this journey.
