Forum:Stardust Dragon/Assault Mode vs field card

Hey yu-gi-oh wikia fans can you answer this? A while back a buddy and I were playing a game and he had his Stardust Dragon/Assault Mode out and I had out my elemental hero absolute zero out. I attacked his Stardust Dragon/Assault Mode and with the help of my skyscraper that was out on the field I was going to beat it. But he argued that he could negate the effect of the field card long after it was played. We could not come to a conclusion to this so we ended the game before a fight broke out. I guess the question I'm asking here is, can Stardust Dragon/Assault Mode negate the effect of skyscraper or any field card like that long after is has been played?Doujinjoe 16:02, September 18, 2009 (UTC)