Probably the most competitive ninja deck - Yu-Gi-Oh! 5D's World

For Yu-Gi-Oh! 5D's World Championship 2011: Over the Nexus on the DS, a GameFAQs message board topic titled "Probably the most competitive ninja deck".

10 Classic Yu-Gi-Oh Decks that Deserve More Support

Episode 170 – Akiza Synchro Toolbox vs The World – The Duel Assessment

DIRECT DAMAGE OTK NEW Ninja Decks in Yu-Gi-Oh! Master Duel

Yu-Gi-Oh! TCG Strategy Articles » Secrets of the Ninja Duelist

For Yu-Gi-Oh, which deck size would be the most optimal for a deck centered around mostly countering spells and traps with a virus control-esque deck structure? - Quora

Ninja: deck recipe [Feb 15]

Yu-Gi-Oh! Rogue Report: Ninjas (Post Photon Hypernova)

Judgment of the Pharaoh

Which deck would win in Yu-Gi-Oh, a Ninja deck or a Red-Eyes deck? How? Why? - Quora

Archetype Poll: Favorite Yu-Gi-Oh! Decks of all Time - YGOPRODeck

10 Best Yu-Gi-Oh! Games Of All Time

Deck tax in DL is just ridiculous. : r/masterduel