In my life, binders are an additional cost that I dont want and dont give me the accessibility that I prefer when deck building some people love it that way and if you do, then more power to you
It should almost always make your deck (if its in your colors) and sends a strong signal that this color is open
Iroh, Tea Master Iroh, Tea Master can hand out food or whatever you like, and service with a smile goes a long way when you play like a pai sho master
It was a format-defining removal spell while in Standard, and Ive seen it dip into Modern decks from time to time, too
Austere Command is far less restrictive on your own build than other six mana mass removal
Lastly, there are cards specifically built around this mechanic, like Thieving Varmint or Gonti, Canny Acquisitor, that easily let you cast spells you dont own