Ninjas are boss!

3x Air armor ninja
3x Aqua Armor ninja
3x Flame Armor Ninja
3x Earth Armor Ninja
2x Ninja Grandmaster Hanzo
2x Thunder king Rai-oh
3x TGU

Spells
3x Armored Ninjutsu art of Gold conversion
2x Burden of the mighty
1x Dark Hole
1x Heavy Storm
1x Monster Reborn
2x MST

Traps
2x Armor Ninjutsu art of freezing
2x Armor Ninjutsu Art of Rust Mist
2x D-prison
1x Solemn Judgment
2x Solemn Warning
1x Starlight Road
1x Torrentrial tribute

Extra deck
1x Stardust Dragon
3x Blade Armor Ninja
1x Leviair the Sea Dragon
3x Number 12 : Crimison Shadow Armor Ninja
3x Number 17: Leviathan Dragon
3x Zenmaines
1x Acid Golem

Any suggestions are great and helpful

-3 Aqua
-3 Tour Guide
+2 Dark Simorgh
+2 Ninjitsu Art of Transformation
+2 Anti-Spell Fragrance

Dark Simorgh + Anti-Spell Fragrance has saved me many times in my own Ninja deck.

-2 Armored Ninjitsu Art of Gold Conversion (You kinda need your Arts...)
+2 Gold Ninja (Helps Xyz Summon faster)

There are other differences in our decks, but yours looks pretty solid...

Thanks!