Spellcasting. Mystery is a 9th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 18, +11 to hit with spell attacks). The mage has the following wizard spells prepared:

Living Weapon. Mystery is considred an object for all spells. Additonally, all spell are cast as if the wielder is casting them.   Bound Weapon. When Mystery chooses an owner, the owner can recall the weapon as a Bonus Action and only the owner can use the effects of Mystery. In initiative, Mystery goes right before the     Made by Talos. Gains Green Flame Blade, Mage Hand, and Hex to their spell list.