In addition to the obvious things like Syphon cards (do some effect to each other player, gain benefits depending on how many other players this hit), there are cards that affect a random opponent, cards that give everyone the game the ability to join forces to create a big effect (for example, a sorcery that lets everyone pitch in mana and then lets everyone put lands into play from their decks), and Enchant Creature cards sorry Auras that boost the creature while preventing it from attacking to
Flying , Sacrifice two Blood tokens: Return Falkenrath Forebear from your graveyard to the battlefield
and look out for more draw spells along the way
Voltron staples, including Swiftfoot Boots, Ancestral Mask, and Mithril Coat, strengthen and protect Sergeant John Benton to stay on the battlefield longer
Captivating Crew turns your opponents' biggest, best creatures into weapons against them