https://www.polygon.com/2018/8/8/17664076/super-smash-bros-ultimate-new-gameplay-modes-nintendo-switch

Super Smash Bros. Ultimate is coming to Nintendo Switch on Dec. 7, and though the character roster is more impressive than ever, that’s not the only new feature coming to the franchise. Ultimate will feature a host of new modes to make gameplay more versatile and exciting.

The Squad Strike battle mode is a 5-on-5 or 3-on-3 elimination-style battle, where each player uses five (or three!) consecutive fighters in a battle to decided the winner. But multiple players can also take turns.