Cunning of the Six Samurai

Edison Card Text
Send 1 face-up "Six Samurai" monster you control to the Graveyard. Special Summon 1 "Six Samurai" monster from either player's Graveyard.
Gladiator's Assault • 2007-11-14
Targets
No Damage Step effect
Banlist • Unlimited
Interactions
Are Swallow's Nest with an Earthbound Immortal and Cunning of the Six Samurai with only Grandmaster in the GY legal?!
Swallow's NestEarthbound Immortal Aslla piscuGrandmaster of the Six SamuraiCunning of the Six Samurai
A player asks about two separate card interactions.
No ruling was provided in the interaction.
Do you need a Six Samurai in the Graveyard to activate Cunning, and can Grandmaster target itself?!
Cunning of the Six Samurai and Grandmaster are being activated with limited targets.
Yes. You need a Six Samurai in the Graveyard to activate Cunning, and Grandmaster can target itself if it is the only valid target.
Rulings
edisonformat.net
●The face-up “Six Samurai” monster sent from the field to the GY is a cost to activate “Cunning of the Six Samurai”.
●You can Special Summon the same “Six Samurai” monster that was sent to the GY to pay the activation cost of “Cunning of the Six Samurai”.
●You can't activate Cunning of the Six Samurai if there are no Six Samurai monsters in the GY.
edisonformat.com
The face-up “Six Samurai” monster sent from the field to the Graveyard is a cost to activate “Cunning of the Six Samurai”.
You can Special Summon the same “Six Samurai” monster that was sent to the Graveyard to pay the activation cost of “Cunning of the Six Samurai”.
You cannot activate "Cunning of the Six Samurai" if there are no "Six Samurai" monsters in the Graveyard.