Here's Mark's reply, on his personal blog, to a player disillusioned from the inclusion of Universes Beyond cards: I get asked a lot why Magic players stick with the game as long as they do, Mark writes
Chaos: Whenever you roll Chaos, put a scroll counter on Aretopolis, then draw cards equal to the number of scroll counters on it
This is one of the best options for a ton of raw card advantage in red, and its a great payoff for infinite mana
The card reads: You may choose an artifact or creature card with mana value 1 you discarded this way, then do the same for artifact or creature cards with mana values 2 and 3. In the right decks, you basically get to pay four mana to draw some cards and put six manas worth of cards into play
Therefore, they have updated the rules to the following: Once per game, any time you could cast a sorcery (during your main phase when the stack is empty), you can pay 3 generic mana to put your companion from your sideboard into your hand
The faster you can get to Gardevoir, the sooner Mewtwo can begin using Side Drive repeatedly
