This Deck utilizes "Armor Ninja" monsters as support for "Genex" Synchro Monsters which require non-Tuner Synchro Materials with specified Attribute.
The "Armor Ninja" monsters have a variety of Attributes, and by using "Air Armor Ninja," which lowers the Level of "Ninja" monsters by 1, and "Flame Armor Ninja," which raises the levels of "Ninja" monsters by 1, you can broaden the range of combinations of Synchro Materials.