Forum:Blast with Chain vs Demise

I wanted to know what happens if the whole field is wiped at once, such as with Demise, King of Armageddon and I activate Blast with Chain on my monster.

I have a second question too: Can you activate Dark Mirror Force after you use Zero Gravity when your opponent declares an attack? --MrVariant 16:40, September 17, 2009 (UTC)