Fire Emblem Heroes amiibo Idea

So, I have an idea on how Fire Emblem Heroes could work with amiibo.

First off, the general use.  Once per day, you can scan any amiibo to get random items, like Hero Feathers, Badges, and in rare cases, Orbs, but the amount of that item you get is preset.  Only amiibo that have been registered to a Wii U, 3DS, or Switch can be used, however.

But for amiibo of Fire Emblem characters, they'll have a secondary use: amiibo units.  These units will always have the "amiibo" title (in Corrin's case, it would be P1 amiibo for male Corrin and P2 amiibo for female Corrin), and you can only get one of each unit (for example, if you have an Ike amiibo unit, even if you use a different Ike amiibo, you cannot receive that unit again), making it so that they cannot be merged into other units.  The units themselves are permanent, will have the same stats and skills as the original units, and will have neutral IVs.  Additionally, they cannot be removed in any way, meaning they cannot be sent home for Hero Feathers or used to give skills to other units, but they can inherit skills from other units.  You can only receive one amiibo unit daily, along with the random items, which counts toward your daily amiibo usage.  Here's an example image of an amiibo Unit that I made.

I'd also like for female Robin to be obtainable as an amiibo unit, but there's no P2 version of the Robin amiibo, so... yeah.

Let me know what you think of this idea in the comments.  I might adjust this based on the feedback.