Synchro Cat

Synchro Cat is a deck which uses the card "Rescue Cat" to Special Summon Tuners quickly. The deck is well known for its OTK, which can be performed in one of the two following: The combo only needs 3 cards, which is a small amount of cards for an OTK. The deck is also fairly cheap, making it easy to build for players with a low budget. Synchro Cat is also very flexible, being able to make a Dark variant or an Earth variant which also helps its card variation.
 * 1) "Cold Wave"/"Giant Trunade"/"Heavy Storm" -> "Summoner Monk" -> "Summoner Monk" -> "Rescue Cat" -> "X-Saber Airbellum" x2 -> "Dark Strike Fighter" x2 > Attack directly with both, then tribute both for the OTK.
 * 2) "Cold Wave"/"Giant Trunade"/"Heavy Storm" -> "Summoner Monk" -> "Summoner Monk" -> "Rescue Cat" -> "X-Saber Airbellum" x2 -> "Arcanite Magician" & "Dark Strike Fighter" > Destroy any defenses, then attack directly.

Original Synchro Cat
Before September 2009, Synchro Cat was considered the top deck of the metagame.

Synchro Cat took a serious hit with the September 2009 Lists. Many key cards, such as "Rescue Cat", "Summoner Monk", "Mind Control", and "Cold Wave" were Limited (as well as "Dark Strike Fighter" being Forbidden).

Monsters

 * Rescue Cat
 * Summoner Monk
 * X-Saber Airbellum
 * Arcanite Magician
 * Dark Strike Fighter

Spells

 * Mind Control
 * Giant Trunade

Flamvell/Hamster Cat
In the wake of Limitations to the original Synchro Cat, the release of "Flamvells" and the card "Super-Nimble Mega Hamster" have given new life to Synchro Cat. "Rekindling" allows the reuse of "Flamvells" sent to the graveyard for use with "Rescue Cat" in creating quick Synchro Summons. "Super-Nimble Mega Hamster" is used as an alternative to, though also in conjunction with, "Rescue Cat" to search out "X-Saber Airbellum".

Monsters

 * Rescue Cat
 * Flamvell Firedog
 * Super-Nimble Mega Hamster
 * Summoner Monk
 * X-Saber Airbellum
 * Gravekeeper's Spy
 * Ryko, Lightsworn Hunter
 * Flamvell Magician

Spells

 * Rekindling
 * Book of Taiyou
 * Book of Moon
 * Mind Control