What is MSB

MSB (Medallions, Stones, Barrier)
MSB is the literal version of MST.
MST rules are:
    Obtain all Spiritual Stones (Eg. Zora's Sapphire)
    Obtain all Medallions (Eg. Fire Medallion)
    Dispel the barrier in Ganon's Castle
    Complete the game (reach the "The End" screen)

However MST bans RBA which means you need to beat the dungeons to obtain the medallions. MSB allows you to RBA so you can obtain most medallions using it. This also leads to different routing and tricks to obtaining the items needed to dispel the barrier. In theory you can clear the barrier without doing the trials however there is no method to do that yet.

Route: http://pastebin.com/aCKBDUmE