Not only will these get you back your instants and sorceries to make the deck go nuts, you can also get back permanents as well
According to ComicBook, Ravensburger will release four new sets per year
Travel across the universe with the Doctor and their companions in the little blue boxthe TARDISand help them protect the universe from threats of all kinds
Dusk // Dawn is tailor-made for this deck since you wont lose any creatures (aside from your commander), and ditto for Slaughter the Strong
Dino DNA Dino DNA is a little slow as a combo piece, but if it goes uncontested, your board really starts to look like Jurassic Park
Clan Defiance It may not look sexy, but Clan Defiance is the best X damage spell in Gruul, and better than most Red options with its ability to shoot down two creatures as well as Blaze an opponent