Neos

"Neos" (ネオス Neosu) is an archetype of cards, the principal one being "Elemental HERO Neos", used by Jaden Yuki in the Yu-Gi-Oh! GX anime. They work with the "Neo-Spacians" to Summon powerful Fusion Monsters via Contact Fusion. Note that "Darkness Neosphere" and "Neo Space Pathfinder" are also part of this archetype because they have 「ネオス」 in their Japanese names. The latter card is listed as being part of a "Neo Space" archetype in the English lore of "Elemental HERO Divine Neos". Most "Neos" Fusion Monsters have an improved version of the effect of the corresponding "Neo-Spacian" Fusion Material Monster.