Toph Beifong the Metal Bender (Patreon)

Requested by Lv 4 patron: 

Tollun 

Patron saw Toph Beifong on the contestants for this new chapter of the Waifu List, and wanted to see my take on Toph.

If you watched the show you know Ms.Beifong is a master of earth bending and later she develops metal bending, so... she can take off that collar whenever she wants, but instead offers you the key to it, what will you do?