Assuming about half of those cards survived and are still in the marketplace, all of the words Ive ever written about, say, Transmute Artifact are referring to something like 3,000 total copies of the card, four of which I personally own
Twister can be effective if you get two heads, especially if you are facing a Pokemon that needs a lot of energy to attack, but no matter what move you use on this card, neither move can do a massive amount of damage, so you'll have to find better cards to really do some damage
Yes, technically theres going to be one winner of a game of Commander, but if everyone comes away smiling at the end of the game, then everyone is a winner
Combine it with Sensei's Divining Top or Mishra's Bauble to control whats on top and minimize damage while you maximize value