I really think that Riches Unremembered and Unused is such a great name for this tech because it keeps the thief theme pretty obviously displayed in the art, keeps the gravitas needed for a technique that has been repeatedly told to us is very dangerous if used incorrectly or taken too far, relates to the culture of the ES with the wind thief reference which the art is heavily inspired by Huisheng, Tsu(the og diviner art ToN became), and the Hui, and harkens back to a great chapter of the story. The other three just fall flat to me in one or more of those so thought I'd try to sway it that way a little. Sorry if I got rambly