At the beginning of each opponent's upkeep, that player chooses draw step, main phase, or combat phase. The player skips each instance of the chosen step or phase this turn.
12/1/2004 That opponent skips only the phases or steps that are chosen.
12/1/2004 If there are multiple phases with the same name in the turn, your opponent skips them all. This is true even if a new step or phase is added to the turn after the ability resolves.
12/1/2004 If more than one Fatespinner affects you at the start of your upkeep, you can choose the same step or phase for each one.