Challenger Pack 7 was revealed to be a Minecraft addition featuring Steve and Alex as well as a Zombie and Enderman character skin. The DLC also adds 7 music tracks and the Minecraft World stage. "Steve & Alex from the Minecraft game are coming to the Super Smash Bros. Ultimate game as a new playable fighter! This iconic fighter is the second fighter in the Super Smash Bros. Ultimate Fighters Pass Vol 2 DLC. Use Steve and Alex’s various tools to mine and craft your way to victory! Challenger Pack 7 also includes a new stage, Minecraft World."
