Among all the powers supported by the World Tree in the three Great Worlds, the Human Clan is the weakest.
However, this weakness is relative.
Admittedly, the Human Clan does not possess the Divine Power of All Gods, nor the robust physique of Giants, and even Elves and Dwarves, having been born from the Giant Ancestor Ymir, are Demigod bodies by nature, commanding powerful strength from birth.
By comparison, the Human Clan certainly appears frail and feeble.
Yet, the Human Clan does have advantages that other Races lack, which is their proliferation.
The strong proliferation of the Human Clan has resulted in ever-increasing numbers, eventually coming to occupy the relatively fertile land of Midgard in Midgard, where they have thrived and passed down their legacy from generation to generation.
For any form of life, when their numbers are sufficient, inevitably, rare talents will emerge.
When these talents grow up, they become powerful individuals.