So to gather all previous meta decks we'll be needing you guys to reply to this thread by typing a meta deck with its format, also keep in mind
if its a deck that survived multiple formats with different build such as: wind-up, mermail. then make sure you include those format along with that 1 deck name too. You are NOT limited to posting 1 deck only so feel free to post multiple decks too

do so by posting with the following format

deck name:

format(s):

'Dragon Rulers' and 'Spellbooks' in march '13


'Chaos' in the entire years of 2004 and 2005
'Goat control' untill sept. 2005 banlist.

Format... um I have no idea but here's the ones I know

Burning Abyss
SatellarKnights
Qliphorts
Shaddolls

Mythic Rulers (Dragon Rulers limited)

Dragon Rulers (babies gone)
Dragunity Rulers
Mermails (post nerf)
Fire Fist (4 axis)

Mermails (in full swing)
Dragon Rulers (in full swing)
Spellbooks
Evilswarms
Fire Fist (3 axis)

Wind-Ups (post nerf, with Shockmaster)
Dino Rabbit (post nerf)

Dino Rabbit
Wind-Ups (3 boat)
Inzektors

Six Samurai (3 Shi En)

Will edit as I remember more

The main three are no doubt:

Burning Abyss, Shadolls (pure or mixed with BA), Qliphorts

Then there are other decks which can still be played (this format is really special summon/swarming heavy)

Blackwings, Satellar Knights, + the others sabb has mentioned.

An interesting deck that is seeing more play is Legendary Six Sam: Shi En/Naturia Beast + 3 Vanity's Emptiness really hurts most decks but with VE being hit by Jan Banlist, I doubt lSS will be that competitive.

mm summer 2014?

HAT/FAT/KAT -- artifact traptrix stuffs
infernity
mermails


spring 2014 was something like
infernity
geargia
mermails

in this format u can count as meta Ragna controll too