Syncro Cat
and now
Infernities
all OTK decks, and Infernities is quite possibly the most busted out of the lot, even though we don't have Trishula in the TCG they are causing a massive stir and an impossible amount of plays to come out of a single deck, the ability to syncro summon for level 9 monsters repeatedly without any real trouble is completely disgusting (for want of a better word) and whats more the combo can be started with a small amout of cards just dump the hand to the grave and you open up an insane amount of combos that are damn near impossible to stop, unless you can do a whole bunch of damage without them being able to react or if you activate solemn at a brilliant time, and even then you cant stop the whole combo ...
i am seriously considering maining Dark Imprisoning Mirror and a bunch of other anti Dark Cards just because this deck is going to be spammed like mad, it is going to take a lot of top spots everywhere, lower decks just don't stand a chance unless you are a very good player
i personally hope there is a mid format ban this time, i don't want another 6 months of OTKs and shizz like that