Autumn-Tail and Humble Budoka

[Volrath, the Fallen]

Can Autumn-Tail, Kitsune Sage (the Legendary flip of Kitsune Mystic) move enchant creatures to a Humble Budoka?

[The Legends]

Yes, the Sage ability targets the enchantment, not the creature, so it works fine.
*Extra* You cannot move enchantments onto a creature that has protection from that enchantment's color. The new home for the enchantment must be a legal permanent for the enchantment and "protection from <foo>" specifically prohibits being enchanted by <foo> things. The same goes for trying to move an "enchant creature" onto a noncreature.
You can however, use Autumn-Tail to move something like Confiscate (an "enchant permanent") from one creature to another since a Confiscate on a creature does qualify as an "enchantment enchanting a creature".