Badonkadonkin Dragon
The title was my friend's idea, don't ask me. Ask kuramatd@yahoo.com for why I said that badonka whatever thing.
 
Tyrant Dragon and Twin Swords of Flashing Light Tryce:
 
Three attacks, considering you killed a monster and one remained...
 
Just a random combo.
 
Blue Eyes, Soul Exchange, Tribute Doll, and Burst Stream of Destruction
Free Dragon, -3000 LP and no monsters for your opponent. Ring and Barrel for added fun.