Add Auto-Sideboarding for Bo1, or Ban Leyline of Resonance
Losing on turn two to ridiculous Leyline of Resonance is so lame. There is basically no way to stop this unless you are lucky enough to topdeck a one mana removal. The new black, blue, white, and green leylines were NOWHERE near as powerful as this red one, and red was already BY FAR the most powerful Bo1 deck. This card, and Callous Sellsword, should never have been printed, and ought to be immediately banned in all formats. It has made Magic the Gathering into a sad joke.
Alternatively, give players in Bo1 the option to designate a sideboard option to automatically use avainst decks that feature certain cards. For example, let me specify I want to sideboard in 15 1- and 2-mana removal spells anytime I am facing a deck with Heartfire Hero, Cacophany Scamp, Callous Sellsword, Leyline of Resonance, Monstrous Rage, Sheltered By Ghosts, Ethereal Armor, etc. It really sucks to just be forced to play against such cheesy ******** every other game, losing over and over to overpowered glass cannon decks unless you resort to running a deck that's 90% removal spells and board wipes. So give us auto-sideboarding in Bo1, or just ban the stupid broken cards like Urabrask's Forge, Fountainport, Sunfall, Leyline of Resonance, etc.
Auto-sideboarding could make Magic be about actually making interesting and creative decks rather than just constant death against a totally and utterly imbalanced meta that Wizards takes our money yet does nothing about besides "keeping your eye" on it.
DO SOMETHING!