You can upgrade your cultivation techniques, talents, physiques, supernatural abilities, bloodlines, magical treasures, laws, and more without limit...
Mighty Heavenly Dragon, first level: [Destroy the Buddha Patriarch with a snap of your fingers]
Mighty Heavenly Dragon, hundred-millionth level: ???
Heaven-Devouring Demonic Art, first level: [Imperfect Chaos Body]
Heaven-Devouring Demonic Art, second level: [Flawless Chaos Body]
Heaven-Devouring Demonic Art, third level: [Innate Chaos Dao Embryo]
Heaven-Devouring Demonic Art, tenth level: [True Hongmeng Pangu Form]
Heaven-Devouring Demonic Art, hundred-millionth level: ???
Self-Transcending Great Art, hundred-millionth level: ???
Then one day, on a whim, you set your sights on your own body as the target for unlimited upgrades...
Upgrade a single hair by one hundred levels: It can cut through the primordial universe and the Myriad Worlds.
Upgrade a single hair by a hundred million levels: ???
Upgrade both kidneys by a hundred million levels: ???