It creates a free copy of any instant or sorcery spell , with the potential to be played for free if you're lucky enough to have it in your opening hand
Fortunately, two staple cards, Monster Reborn and Raigeki can be easily obtained through Duel Strategy via solo mode
The price you pay for a deck scales down based on the cards you already have in your collection, so it might be worth your time to actually craft the commons and uncommons from a Brawl deck you plan to buy before you actually purchase it , saving yourself some gems in the process
Its only fitting the mechanic that broke from tradition would do so again
send that card on the field to the GY, and if you do, Set the other card from the GY to your opponent's field
If a creature does both without costing too much mana, then you know its a good card