Silence

[Steve-OH!]

At my local prerelease there has been a couple issues with the understanding of how the card  {Silence} can be played. What was ruled at the prerelease has already happened and I will not go over that because I was not directly involved with the conflict, but I want to know one thing:

Can you or can you not play  {Silence} during your opponent's upkeep to prevent them from having a chance to play spells during their mainphases/rest of their turn? If not, when is the earliest opportunity to cast an instant on your opponent's turn?

[scarsabrex]

Yes you can cast during the upkeep.

RESOLVED

[AwaySinceMirage]

This was judged at my tournament as well; I was the one playing Silence.
I could cast during opponent's upkeep (starting a stack), opponent therefore gets only that one opportunity to cast an instant of their own in response on the same stack (in his case {Volcanic Geyser}). His instant resolves first, then mine and he is shut down thereafter.

[Daxos]

starting a discussion on Time Stop. Bump.

[Remillo]

Please don't bump old threads.  If we need them for a newer ruling (and in all likelihood, we don't), we'll simply reference them.

[Daxos]

got it chief