Ruling Magnezone Prime and DCE

[thefleeee]

If Magnezone Prime uses Lost burn and lost burns a DCE, would the attack do 50 or 100

http://www.teamomar.com/wp-content/uploads/2010/12/MagnezoneTriumphant96.jpg
http://www.http://google.com/.com/images/Double-Colorless-Energy-HeartGold-SoulSilver-HS-103-250x343.jpg

 

[DNA]

"This attack does 50 damage times the number of Energy cards..."

DCE is one card. It contributes 50.