Forum:Royal Decree Rulings

I read Royal Decree Rulings, and I was trying to understand some part for it, like why some trap cards can re-apply itself while others can't.

1) If Royal Oppression is face-up on the field, and then Royal Decree is played, will Royal Oppression stay negated when Royal Decree is removed from the field?

2) Why does Wall of Revealing Light's effect re-applied when Royal Decree is destroyed? Why doesn't Ninjitsu Art of Decoy's effect get re-applied??

--Xsamuraizx 22:14, February 18, 2010 (UTC)