This Tier List was made explicitly with the 2nd Stage of the KaibaCorp Cup in mind. As such, it reflects TPC's opinion on which decks will be the strongest in the Best-of-1 Ladder format.
While the past tournaments have been heavily populated with control decks, I believe the KC Cup will be more populated with aggro and combo decks. As it stands, the meta has not changed significantly since the KCGT, with the only alterations to the game being the removal of Elementsabers and the addition of Karakuri. I think it is very possible that the aggro deck meta of KCGT may once again be popular as we no longer have a control deck resistant to Loading... or heavy backrow removal. This may not seem like a major change, but without reliable defensive strategies, KC Cups devolve into OTK competitions. Aggressive strategies also do not have to worry about lower consistency since the nature of KC Cup permits decks to brick more than tournaments permit them to.
The KC Cup is predicted to be one with a lot of aggressive decks. It isn't recommended to play such a deck because they're can't win reliably without drawbacks (big winning streaks followed by big loss streaks). Control decks that can tech some protection against OTK-threatening decks appears to be the safest route to secure a consistent climb. This is why the control decks on the list are generally higher tiered for a KCC format than the rogue-level streaky decks.
This weekend marks the beginning of the second stage of the KC Cup. As always, we expect many surprises despite an already-established metagame. We are expecting to see dominant decks like Crystrons and Karakuri at the top, although surprises may come with the arrival of latest Main BOX, perhaphs that the new Water deck might perform well. We may also see what could be the last KCC of Shiranui and Invoked dominance before a big banlist, as both have been relevant for over a year, and it is my humble opinion that it's time to remove both from the metagame. Finally, I believe we will see Weather Painters this KCC, as this deck has become quite popular in recent weeks for being a hard counter to both Invoked and Shiranui. I have no doubts that this KCC will leave a lot to talk about.
Despite being a fairly slow deck, Invoked Magician Girls should still do relatively well in this upcoming KCC. They have 2 negative matchups in Weather Painters and Loading... Crystrons so if those decks are not doing well expect Magician Girls to start popping up more.