Advanced format ruling
The Immortal Bushi
Card effect (current official text)While this card is face-up on the field, it cannot be Tributed, except for the Tribute Summon of a Warrior-Type monster. During your Standby Phase, if this card is in your Graveyard and all the monsters in your Graveyard are Warrior-Type: You can Special Summon this card. You must also control no monsters to activate and to resolve this effect.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.