First off, you will need Ring of Magnetism, Stop 
Defense  and Reverse Trap.
       
Take your Ring Of Magnetism, and place it on your, or your opponents strongest 
monster, like BEWD or the Dark Magician, and play Stop Defense, unless they're 
already in Attack mode. Play your Reverse Trap face upand end your turn. 
Activate your Reverse Trap when its your opponent turns, this way, your 
opponents monster equipted with your Ring of Magnetism will recieve a 500 ATTACK 
and DEFENSE boost. All of your opponents monsters will die, and it will also 
take away life points. So basically,you get to sit back and watch your opponent 
kill his/her life points. Have a blast with this combo, (i know do). It really 
makes the duel more exciting. 
                                                                               
-GTRONNIE@aol.com