Dex's Kewpie Doll

You transform a kewpie doll into a decent approximation of yourself. The doll has an AC of 10 plus your dexterity modifier, and 1 HP per level of the spell. It also shares all of your stats and proficiencies except that it has no mind of its own and relies on you thinking for it.  Immediately when you cast this spell, and as a bonus action on subsequent turns, you may command the Doll to pose, move, and move up to your speed. You can see everything the Doll sees, as well as everything you see. However, you are unable to close the Doll's eyes.

When you cast this spell, you may also cast a concentration spell of 3rd level or lower with a casting time of one action, and the doll may hold concentration on that spell. You expend the spell slot for both this spell and for the additional spell, and you meet any other requirements to cast the second spell, but the kewpie doll finishes the casting of the spell and holds concentration on it. You may do this without interrupting any concentration you may currently be maintaining.

When the spell ends, the tattered and burned remnants of the doll fall to the ground. If you cast this spell again while a kewpie doll is animated, the first kewpie doll is destroyed and the spell on it ends.

At higher levels. When cast at higher levels, the cost of the components required for the construction of the kewpie doll doubles for each level beyond 3rd level (50gp for 4th level, up to 1600gp for 9th level), and you are able to transfer concentration of a spell up to the spell level cast.