Need help with theme Duels!

I need help on how to get an S rank on 2 theme duels;

1= where you have to win with exodia
2= where you have to win with destiny board

I know to get an S you have to iwn in 5 turns or less but anyone got any tips or decks they used?

it is near impossible, for a start 40 cards in yer deck...er i dont know i havent won them except throughout the conventional means of an AR

exodia: win by the 5th turn
Destiny Board:Glitch;cant be done and only way of the A rank is drawing cathedral of nobles or bubbleman plus bubble illusion within Destiny Board

I have no idea how to beat the dating board one, but I have an excellent strategy for exodia. Put two manticores of darkness in your deck with three card of safe returns you will also need some foolish burials. How it works is to get one manticore in your hand and one sent to the graveyard in the current turn. Make sure you have at least one card of safe return active. When the manticore in the graveyard activates. Send the other one to the graveyard to special summon it. Card of safe return will activate allowing you to draw card(s). Then your second manticore will activate during the same turn... Repeat. I find that reloads help. When you get a lot of cards in your hand since they are quickplay you can activate them during your endphase and draw an entirely new massive hand. I won in 1 turn on my 3rd try. Your welcome and look up the band ensiferum... They rule. \,,/(^.^)\,,/