2 Level 5 monsters // Once per turn, during either player's turn: You can detach 1 Xyz Material from this card; this turn, face-up "Ninja" monster you control cannot be destroyed by battle or by card effects.
This card is the first "Numbers" card that belongs into another archetype, "Ninjas", and sub archetype, "Armor Ninjas"in addition, this is currently the only Numbers monster that supports an archetype.This card's sealed form is a red 4 pointed shuriken. When summoned some points protrude to form the shoulder pads of this monsters armor while the other points stretch down to form the legs.This card could resemble how Yamikawa believed that darkness would never be destroyed or vanish away.This card's effect is similar to that of "Super Star Mira".This card resembles the Knightmare Frame "Zangetsu" from Code Geass.This card also resembles the Arm Slave "Venom" from Full Metal Panic.This is the strongest monster in the "Armored Ninja" archetypeThis card is currently the only EARTH-Attribute "Number" monster.12 is clearly designed for Ninja decks, though can be useful in other decks, as well. It is easy to summon in decks that play Tiras, Keeper of Genesis, Adreus, Keeper of Armageddon and Wind-Up Arsenal Zenmaioh, is rather strong, and can protect itself. As more rank 5 monsters are released, though, 12 will be less and less useful.Even if you do use 12, using other ninja's would be the best way forward.