Forum:Chimeratech Fortress quick question

Hello

I was building a cyber dragon deck and come across a question. Under the card text of Chimeratech Fortress Dragon,

"You can only Special Summon this card from your Extra Deck by sending the above cards from either side of the field to the Graveyard."

I am just curious that if it is turn I can use my oppornent monsters which I don't control to special summon it. I tried to search the Forum, but couldn't find an answer.

Also, how come we can use "The Light - Hex-Sealed Fusion" to sub but not by Fusion Substitute Monster like "Goddess with the Third Eye" or "King of the Swamp"??

thx for the help

Pyrocheng (talk • contribs) 22:25, July 6, 2011 (UTC)