There are plenty of places to trade cards in person, like at Pokmon or trading card conventions, at game or trading card stores, or at your local Pokmon League
Authority of the Consuls, Joust Through, and Crystal Barricade all serve as ways to slow down Mono-Red and other potential aggro decks like Rakdos Lizards
Regardless of what happens, even if the promo system stays exactly the same, I don't know why promo cards are put into MTGO accounts with absolutely zero fanfare
Up to four permanents can be chosen if everybody cooperates and negotiates properly, but youre likely going to end up exiling two or three most of the time
Fleetfeather Sandals is one of my cards of choice when it comes to Voltron, as flying and haste are arguably the two best keywords for this strategy