The way I was going to play it was that the Echo would return her Allomancy powers and since a previous one gave her knowledge of what steel does and another thread had her acquire some that would be the one she'd use first. It would be in a seriously depowered form with very limited range and only the ability to push on one object at a time that she's focused on. Less action movie ninja-star-throwing and more ragdolling around the street like a putz while monsters try to eat her face. Also, since she has to almost die for this Echo to work I don't plan on making it easy on her. Would that be alright with you guys?

The rest is pretty much exactly how I was going to play it. This Echo would just mean she could potentially use the metal but she'll still have to Echo back the knowledge of others before the power is available. Also totally cool with needing a second Echo to reach full power. I'm just hoping to streamline the whole thing a bit more so I don't need to devote over twenty Echoes just to get her abilities back at all.