Another good combo using cards from Dark Revelation volumes 1 and 2 is "Tribe-Infecting Virus" and "Night Assailant". The "Tribe-Infecting Virus" is a powerful monster on its own, with an effect that allows you to discard 1 card from your hand to destroy all monsters of a chosen Type on the field. You will want to use this effect often, but may be forced to discard good cards from your hand, or even have no cards left in your hand! This is why you play with "Night Assailant". When "Night Assailant" is discarded from your hand, it has an effect that allows you to return any Flip Effect Monster from your Graveyard to your hand, other than the discarded "Night Assailant". Since "Night Assailant" also has a Flip Effect, you can choose a second one that is already in your Graveyard. So you have 1 "Night Assailant" in your Graveyard, then discard another "Night Assailant" to activate the effect of "Tribe-Infecting Virus", and take back the first "Night Assailant" into your hand. Continue to do this and you will never run out of cards to discard!