I knew you would make that association but i have to disagree. arc of embodiment is A lost and B exponentially more complex than what i am proposing. while AOE can create solid matter as well as living creatures for an unidentified amount of time. mine cannot. it can only manifest magic energy/power into a solid. it doesnt last and its not as stable. the closest example i can come up with is the ability of a Green lanterns ring. the structures are made out of light (magic) and imagination.
while my magic is similar in theory to AOE I took the concept from the core of the Molding magic which "allows the user to mold or create something by concentrating their Magic Power into their hands, like an element, into different shapes or forms." so i thought about skipping the element and using the root of the ability.
This is my defense, but you are the GM so if it is still unnaceptable i will try to see if i can come up with something else. but of course there area a lot of make magics, they are the best, you cant beat the power of imagination (pun intended)