Boros is best known for being extremely aggressive since red and white are, among other things, known for cheap creatures
Mark Rosewater has gone into elaborate detail on double-faced cards on his Drive to Work podcast - I would recommend checking this one out for the history of the mechanic
Blinking Teferi, Time Raveler brings it back with 4 loyalty
Anya, Merciless Angel With Anya, Merciless Angel, you need to aggressively get an opponent to 20 life or less
For most formats, there's not much public information available on the individuals who make these decisions, but we do know that MTG's Play Design team has some say in what cards are banned
Lorcana The First Chapter Booster Pack 5 In this pack, we got: Commons: Aladdin Corners Swordsman, Vicious Betrayal, Tinkerbell Peter Pan's Ally, Sebastian Court Composer, Tangle, and Flounder Voice Of Reason Uncommons: Scepter of Arendelle, Tamatoa Drab Little Crab, and Ursula's Caldron Rare or above: Mulan Imperial Soldier (Super Rare), and Kuzco Tempermental Emperor (Rare) Foil: Chief Tui Respectful Leader (Uncommon) The Super Rare and Uncommon Foil raise this above a standard pack, but don't dazzle with great pulls
