This combo is pretty good and can also be used instead of a one-turn kill deck(a.k.a.Devil Franken Deck)

On your field face-up: Quick-kill Assasin (from Pharoah's Servant)

Face-down: Reverse Trap, Harpy's Feather Sweeper, Raigeki,(and if you want to do major destruction a giant growth)  

In your hand: Any cards as long as you have 5 or 6 cards in your hand

First to tell you what the quick-kill assasin's effect is: 2000/2000  Decrease quick-kill assasin's attack and defense by 400 for each card in your hand.

Now the combo: if your opponant has any monsters, magic or traps on the field use the Raigeki and harpy feather sweep to destroy them.Then activate the reverse trap you had face-down making the reduction of Quick-kill assasin become an addition (ex. if you have 5 cards in your hand your multiply 5 times 400 to get 2000 which you add to his attack and defense taking him up to 4000/4000 and for high damage use the giant growth but make sure your life points are higher than your opponants or you will automatically go back to 2000/2000)

This combo is almost like a devil franken combo but you don't need overly rare cards for this combo since quick kill assasin is a level 4 common

If you have any problems with this combo or you see anything wrong, email me at david_lourenco014@hotmail.com