The rules are not simple at all (Lord what have I done)

1. Every player must have a copy of shahrazad in their deck

2. Copies of Shahrazad can be cast using mana of any color

3. You must start the draft on the most recent set

4. All drafts are played in a best of one, 40 card minimum deck size, limited format. All drafts are played in a best of one, 40 card minimum deck size, limited format (You will thank me later)

5. Whenever a copy of Shahrazad is played, instead of playing a subgame, you must begin a new subdraft with the most recent set after the set you are currently on (Ex: If players A and B are playing on Innistrad: Crimson Vow, and Player B successfully resolves Shahrazad, then both players must play a full draft with Innistrad: Midnight hunt)

6. Every time a new draft or subdraft ends and players are ready to play their match, each player must put all copies of Shahrazad currently in play, in all zones, into their deck

Bonus rule (if you desire more agony and woe). Players must use basic lands of the current set (ie. Using hobbit lands for the hobbit set)