Manual of the Fated Iron horse

Wonderous Item, Artifact   This tome contains information and incantations necessary to make a Fated Iron Horse. To decipher and use the manual, you must be a spellcaster with at least two 5th-level spell slots and who knows the Animate Dead or Create Undead spells. A creature that can't use a Manual of the Fated Iron Horse and attempts to read it takes 10d10 psychic damage.   To create a Fated Iron Horse, you must spend 150 days, working without interruption with the manual at hand and resting no more than 8 hours per day. This also requires casting the Animate Dead or Create Undead spells upon the creation once per day during construction. You must also pay 120,000gp to purchase supplies.   Once you finish creating the Fated Iron Horse, the book is consumed in eldritch flames. The Fated Iron Horse becomes animate when the ashes of the manual are sprinkled on it. It is under your control, and it understands and obeys your spoken and telepathic commands.