Hi,
Thanks for the quick responses. The article was something that was originally written during Grand Prix Portland last month, when Chris Richter asked me to write up something for the judges based on questions we had been receiving during the event. Urborg/Blood Moon was not covered because it was not something we were running in to during the event. However, I am working on getting something added to the article to cover that interaction.
Diarmuid: David is correct. If two or more objects would receive a timestamp at the same time, the active player gets to choose their timestamp order. This is covered in the comp rules by rule 613.6g.
Edited Nathan Long (June 18, 2013 02:44:02 PM)