"'''Ninja'''" ({{Ruby|忍|にん}}{{Ruby|者|じゃ}} ''Ninja'') is an [[archetype]] of mostly [[Warrior]]-[[Type]] [[Monster Card|monsters]], in addition to some [[Machine]]s (such as some members of the "[[Karakuri]]" archetypeand "[[Superheavy Samurai]]" archetypes). A handful of the "Ninja" cards existed in the ''[[Yu-Gi-Oh! Trading Card Game|TCG]]'' and ''[[Yu-Gi-Oh! Official Card Game|OCG]]'' prior to being united by support cards in later sets. Characters that used "Ninja" decks in the anime include [[Jean-Claude Magnum]], [[Kaze]], [[Moon Shadow]] and [[Sun Shadow]].
==Play style==
|effect monsters =
* [[Ninja Grandmaster Sasuke]]
* [[Lady Ninja Yae]]
* [[Goe Goe the Gallant Ninja]]
* [[Ninja Grandmaster Hanzo]]
* [[Masked Ninja Ebisu]]
* [[Upstart Golden Ninja]]
* [[Senior Silver Ninja]]
* [[Blade Armor Ninja]]
* [[Heroic Champion]]s
* [[Number 39: Utopia]]
* [[Photon Papilloperative]]
|spells =
* [[Reinforcement of the Army]]
* [[Anti-Spell Fragrance]]
}}
=== "Armor Ninja" ===
{{Main|Armor Ninja}}A great amount of the superior Ninja monsters and support were released in ''[[Order of Chaos]]''. With it came the "[[Armor Ninja]]" sub-archetype. Their purposes and potential combos are below:
#"[[Air Armor Ninja]]", "[[Earth Armor Ninja]]", and "[[Flame Armor Ninja]]" are meant to be used in conjunction with each other based on which Xyz Monster the player plans to Summon, but with "Earth Armor Ninja" at the heart of the combo:
#*[[Blade Armor Ninja]]:
#*#Summon "Earth Armor Ninja" first, then use "Air Armor Ninja" to lower the Level "Earth Armor Ninja" by 1, bringing him down to 4.
#*[[Number 12: Crimson Shadow Armor Ninja]]:
#*#Summon "Earth Armor Ninja" first, then use "Flame Armor Ninja" to increase the level of itself or another Level 4 "Ninja" monster by 1 for the Xyz Summon.
#*#Summon "Earth Armor Ninja", then Tribute him to Set "[[Senior Silver Ninja]]". Either use "[[Book of Taiyou]]" or wait until he is flipped face-up. IF you used "Book of Taiyou", Special Summon "Earth Armor Ninja" and "Air Armor Ninja" and decrease the Level of "Senior Silver Ninja" by 1, bringing it down to 5 during your next turn or use card effects to flip them face-up.
#"[[Upstart Golden Ninja]]" can trade your useless "Ninjitsu Art" or other Trap for a lesser "Ninja"; you could set "[[White Ninja]]" or "Sazank" for their Flip Effects, or Special Summon "Hanzo" face-up to thus profiteer off of ''his'' effect. Lastly, if the "Ninja" you summoned face-up is level 4, you can even overlay with "Upstart" for "Blade Armor Ninja".