N. Number

 is a Number sub-archetype of Normal Monster and Fusion Monsters which focus on summoning "N. Number C" monsters, mainly by use of "Level-Up-Magic" Spells.

Playstyle
As their name suggests, most "" monsters are Normal Monster, and as such, they have no effects. Whilst they have no effects, they do benefit from generic Normal Monster support, but have a maximum of 3000 ATK.

N. Number C
N. Number C (or Chaos Normal Number) is a sub-archetype to "N. Number" of Fusion Monsters that evolved with the power of. They are summoned from the Extra Deck by the effects of "Level-Up-Magic" cards. Since they are Fusion Monsters, they no longer have a maximum of 3000 ATK, and now can have effects.