>This combo requires 3 cards but im not totally sure if it works...
>
>Rivalry of Warlords
>Regualation of the Tribe
>Sinister Serpent(or any card that u can keep getting back to hand 
>/field)
>
>Rivalry of Warlord lets only one type of monster exist on the opponents
>side of the field.
>Regulation says that monsters of a declared type cannot attack but you 
>have to sack a monster every turn
>
>If you combo these then you can set up a semi decent lock. Just make 
>sure
>you have something to protect yourself if the destroy one of the cards.
>
>Send all mail to landon_jt@comcast.net
>
>