Forum:Clarification on "Control"

This came up in regards to Beast King Barbaros's effect: "You can Tribute 3 monsters to Tribute Summon this card. When you do, destroy all cards your opponent controls." If my opponent has a face down trap card, is that card considered to be under his control? Thanks for your response.

-- Kungfu-mama(talk) 15:58, January 9, 2010 (UTC)