Forum:Red dragon archfiend vs Savage Colosseum

I have Savage Colosseum face-up and field barrier, and a face down threatening roar. My opponent has stardust dragon, red dragon archfiend, and another monster face-up. I activate threatening roar, preventing my opponent from attacking. During the End Phase, my opponent tribute stardust to negate the effect of savage colloseum. Can my opponent then special summon stardust from the graveyard, and then tribute it to negate the effect of red dragon archfiend before it destroys his other monster?

Chewbacca The Drummer (talk • contribs) 18:47, January 27, 2011 (UTC)