I'm working on a Commander deck based on Riku of Two Relections (so URG) that I'm trying to build with a strong theme around mirrors and reflections. Here are the cards that I've found so far:

https://deckbox.org/sets/1408511

Once I have all of the mirror and reflection themed cards I'll work on building a deck that might actually work and fill in with non-themed cards. Does anyone have suggestions? I'm especially looking for cards that might fit due to the art but might not be obvious due to the name.

Pretty much all of the Clone effects.