I would advise to know the copy cheat. Have the W-Item Materia and use one dazer. Go to any other item and press O then press X. If you look at the item you will notice that you have one more than that. Get 99 dazers and 99 Mega-elixers and go to the ruby weapon. Note: two characters have to be dead. Have your strongest character with the Master Summon and Master Magic equipped with the Sprint Shoes (obtained in the Gold Saucer from a girl near the stairs). Go to the weapon and use the dazers on the weapon. 90% of the time it will work. Use the final summon Lords fo The Round. It does about 12 to 15 hits. If your magic is high it would do about 7,000 to 8,000 HP every hit. You might have enough time to do another summon if not use the dazers again because if he attacks he'll do a hellovalot of damage. If Cloud gets his special use it. In about 12 to 15 turns of dazering he'll die.