Nitro

The Nitro cards are a series of FIRE-Attribute monsters.

In addition to their Attributes being FIRE, they are also Machine-Type monsters (with the exception of "", who is a Warrior-Type monster). This archetype was modeled after both "" and "", two cards used by in .

Most of the cards' effects usually revolve around the use of Spell Cards, since one of Nitro Warrior's effects can only be activated once the player has activated a Spell Card. Cards with such effect either revolve when the player has activated a Spell Card, or if there is a certain amount of Spell Cards in their Graveyard.