"Sub-Clan" is an unofficial term to refer to a set of usually same-clan cards of different grades who share a card title, with a playstyle focused around their members alone. Aside from Sub-Clans, there are also "Archetypes", a set of cards whose support members do not share the same card name or title as the main card, and "Series", a set of cards similar to Sub-Clans in that they share a card title, but whose abilities do not specifically require a member of the same card title.
These sets of cards are normally all of the same clan, however some cards, usually in the Archetype category, may be spread out throughout various clans.
Sub-Clans can fit into two categories: "Complete" and "Incomplete". "Complete" Sub-Clans are those who have enough members to make the main 50-card deck solely out of its members alone, regardless of a card's viability. (As there aren't many Sub-clan specific G units, the G zone is excluded as a requirement.) "Incomplete" Sub-Clans are those that have multiple members throughout the different main-deck Grades, however the Sub-Clan itself does not have enough members to make a deck solely of that Sub-Clan.
All Sub-Clans, both Complete and Incomplete, must have members sharing the same card title, be of varying grades, and require other members for their card abilities.
List of Sub-Clans
|Battle Sister||Oracle Think Tank||Complete|
|Demon World Castle||Shadow Paladin||Incomplete|
|Jewel Knight||Royal Paladin||Complete|
|Magus||Oracle Think Tank||Complete|
|Sanctuary of Light||Royal Paladin||Incomplete|
|Swordsman of Light||Royal Paladin||Incomplete|
|Witch (ウィッチ)||Oracle Think Tank, Gold Paladin||Incomplete|
|Witch (魔女)||Genesis, Shadow Paladin||Complete|
※Note: Despite having a single member in the Tachikaze clan, the main "Magus" sub-clan is entirely within the Oracle Think Tank clan, thus the sub-clan being listed above.
|Shura Stealth Dragon||Nubatama||Incomplete|
|Beast Deity||Nova Grappler||Complete|
|Death Army||Nova Grappler||Incomplete|
|Dimensional Robo||Dimension Police||Complete|
|Messiah (Archetype)||Link Joker||Incomplete|
|Beast Tamer||Pale Moon||Incomplete|
|Blade Wing||Dark Irregulars||Incomplete|
|Nightmare Doll||Pale Moon||Complete|
|Silver Thorn||Pale Moon||Complete|
|Blue Storm||Aqua Force||Complete|
|Blue Wave||Aqua Force||Complete|
|Blue Wings||Aqua Force||Incomplete|
|Maiden of||Neo Nectar||Complete|
|Blaster||Royal Paladin, Shadow Paladin, Gold Paladin, Link Joker||Incomplete|