I think that what IPG says about both players receiving a GPE-GRV is meant
to be used when you discover the error after some time. What I mean is that
if AP casts Sword to Plowshares and NAP puts the creature in the graveyard
and AP calls a judge because of that, do you think both players should
receive a GPE-GRV? If the call is done after some actions once the spell
has resolved there's no doubt, both players are responsible of the error
and should receive a GPE-GRV.
In this scenario it looks like NAP has performed an illegal action
(shuffling library when resolving a swords to plowshares) and at that
particular moment AP has realized about the error. They have begun a
discussion and they have called you because of NAP mistake. I don't think
AP should receive that penalty.
My interpretation of the scenario is that NAP has performed a GPE-GRV
infraction when resolving his opponent Swords to Plowshares. The penalty
for this infraction is a Warning (depending on previous GPE-GRV from that
player). And since we don't know the identity of the two cards that were
known by NAP on the top of the library we can't back up the status of the
library. So it must be shuffled to be in a randomized state.
It is possible for NAP to abuse from this situation to shuffle and avoid
those two cards on top, so we should invest some effort investigating (but
he will rarely accept it). Since a Path to Exile was revealed by the
opponent during upkeep I think it is very probable that the error is not
intentional.
Asking the player to cast Path to Exile instead of Swords to Plowshares is
not acceptable for me, it doesn't matter if it is a Regular of Competitive
tournament. AP casted that card correctly, I can't find any reason to ask
him to change that action.
2013/5/30 Michael Quinton <
forum-4326-feb7@apps.magicjudges.org>