Number 12: Crimson Shadow Armor Ninja

Level 5 EARTH/Warrior Xyz Effect
2400 ATK / 1700 DEF

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" monsters you control cannot be destroyed by battle or by card effects.

Rulings – Yugipedia

Printings:

Order of Chaos: ORCS-EN042 (Ultimate Rare) - 2012-01-20
Order of Chaos: ORCS-EN042 (Ultra Rare) - 2012-01-20
Star Pack 2013: SP13-EN030 (Common) - 2013-03-01
Star Pack 2013: SP13-EN030 (Starfoil Rare) - 2013-03-01

Prices:

Cardmarket: 0.20 €
TCGplayer: $ 1.98