Forum:Imperial Custom vs. Sanguine Swamp

Say I have a face-up Imperial Custom on the field, and I set Sanguine Swamp. During the opponent's turn, I activate Sanguine Swamp. I know, through the ruling for Overdoom Line, that Sanguine Swamp won't destroy itself at the end of your second Standby Phase, but will it destroy itself because there's another Trap card on the field? I don't think it would, since Imperial Custom is already active, but I wanted to make sure. 68.58.148.71 17:00, 11 July 2009 (UTC)