This is just Wonder Picking as normal: if a friend happens to have drawn a gold card, you can do a Wonder Pick and pray you get the 1-in-5 chance of getting the same card as them
A small curiosity: before being nerfed, Innervate used to generate 2 mana at no cost, allowing players to perform: Innervate, Innervate, and a five-mana card on the first turn
And following the trend set by Battle for Zendikar , Amonkhet featured special Masterpiece cards
Tifa, Martial Artist* Another of the Final Fantasy 7 commanders, Tifa cares about the number 7, letting you get an extra combat if you hit with a powerful creature, a mark she can hit in games of 4 or more players without any special help beyond a couple other attackers
Value can be subjective, but Magic: The Gathering cards are generally considered valuable if theyre extremely beneficial in play and/or hard to find
Wide shelves can hold more stock than a standard shelf