Fleur

Fleur (French for "flower") are a small series of cards, usually with French names, used by Sherry LeBlanc in the Yu-Gi-Oh! 5D's anime.

Play Style
The najority of the support cards are used only in the anime. However, the two main monsters either have been already, or will be made into actual cards. "Chevalier de Fleur" was released in both the OCG and TCG, and "Sorciere de Fleur" is currently pending release in the OCG. Both monsters require weaker Fleurs to summon them, "Fleur Synchron" and "Necro Fleur", respectively. The playing style of the Fleur cards focus on bringing out the two powerful trump monsters, which then focus on limiting the opponents options by destroying the ability to use Spells or Traps, which can be hard to come back from as many Traps are defensive and stop attacks.

Doing this then allows a direct assault without having to worry about cards ruining your strategy. Since this deck more or less relies on Tuner monsters being on the field it uses a lot of trap and spell stalling to limit the opponents actions until Chevalier de Fleur can be Summoned.

Weakness
The greatest weakness of the Deck is also its greatest strength - the Synchro monster Chevalier de Fleur. As such, this Deck is easily crippled through the use of anti-Synchro Traps such as Discord, or the Machine Emperors. If they do manage to get their Synchro monster out, the effects of Effect monsters are still able to be used, and of course the majority of the effects are once per turn or one use effects.