yugioh metagame

OCG (japanese) metagame:
1. DAD beast synchro
the clear cut top deck is DAD (dark arm dragon) beast synchro, and statistic doesn't lie.
it took 1st, 2nd & 3rd place japan national (east), and then 2nd, 3rd & 4th in japan national (west). the deck is stable with lots of deck searching and combo, with no card advantage lost. sound imbalance?
key cards: rescue cat, x-saber, brionac dragon of ice boundary.

2. gladiator beast
with the new cards like chariot & GB gyzarus, this has became the deck to beat.
this deck usually runs with more than 10 traps, and can rush and control, a versatile deck. but the biggest weakness is that, all GB are blank cards unless you tag them out from deck.
key cards: hard to name, as it's a deck of its own. but bestiari and gyzarus sure top the list.

3. tele DAD
i'm playing this deck, basically use emergency teleport and psychic tuners to mix with DAD.
its main combo is coldwave (metagame card) then chain with teleport and synchro then s.summon DAD if you able. quite violent.
the main advantage of this deck is that, it has alot of tech card space.
keycards: coldwave, emergency teleport, DAD

4. lightlord
a very luck base deck, when you've the luck, this deck's rating is more than class-S, probably class-X. basically a rush deck with lightlords, who have good effects as well, then otk with judgement dragon. did i forget to mention honest?
keycards: judgement dragon and.... LUCK

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TCG (US) metagame:
1. gladiator beast
unlike OCG, there is no synchro summoning in TCG, GB became the obvious best deck.
although it doesn't have chariot, but it runs with E-hero prisma and test tiger. it tops many national TCG tournaments, and everyone main deck cards to beat it.
keycards: same as OCG GB, but also prisma and test tiger

2. allure DAD
with dimension fusion banned, and return from DD restricted to 1, it's nerfed pretty badly. it used to be all DAD return for top 16, but it's going down hill now. but still you will get owned with DAD x3 in one turn.
keycards: DAD

3. lightlord
same as japanese, it didn't shine much compare to the top 2 decks because it's not stable.
keycards: judgement and 'honestly' you need LUCK.

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september's ban and restriction list is coming soon, probably it'll be out in a month's time. just by looking at the keycards you see above, it's really easy to those decks.
restrict DAD, and many decks get nerfed quite badly. as for GB, just take out 1 to 2 key cards, and you can say bye. as for lightlord, i don't know if it's necessary to nerf it. and of course other light base deck which run with honest, e.g. bahamut's national winning deck, but i don't think honest will be touched. coldwave will have a high chance being banned.

IF~ and that is a big 'if', all the above the decks get nerfed and cycle out of the metagame, undead seems like the most promising deck to take over. there're already undead decks in the metagame now, and with OCG 602: crossroad of chaos, undead will get stronger. it's a greedy deck, you get 'free' field and hand.