The Whole basic ideaof miracle rogue is to quickly draw through your cards untill you gadgetzan auctioneer You need to be able to coneal your gadgetzan with conceal you either need the coin or prep 

Card Swaps: If you dont have prep you may not good time with this deck Xaril poisned mind can be swaped with violet teacher or another conceal or deadly poison Edwin vancleef:Is eesintial in this deck but it can be spwaped with questing adventurer But you might have an good ladder climbing without him Leeroy Jenkins: Can be swaped with southsea deckhand and faceless manipulator and the strategy is you put the cold bloods on him and then you faceless manipulater it for a burst of 20 damage however if you leeroy you attack with him hen shadow step and then the two cold bloods 1 is fine and then finish them This how you will finish your opponent