BattleBox intended for easing new players into the game.
Two separate decks, 4-card hands, no mulligans, player 2 starts with a Gold token.
Command zone has 10 basic lands for each player, 2 of each type. Players can play one land from their command zone each turn.
I attempted to minimize card complexity without making it totally boring/vanilla. I started by building a 23-card "limited" deck for each mono-color, to ensure reasonable ratios of mana costs and creatures to noncreature spells. The overall power level should approximate a good core-set draft deck, with some aggro dudes, midrange value, a few tricks/removal, the occasional sweeper, and a few bombs.