Disclaimer from Jadehex, TPC Manager
This is the LAST Tier List for this iteration of the Top Player Council. April 2021 marks the beginning of Season 15 and a new Top Player Council, I would personally like to thank this iteration of TPC for their comments, they've been a big help in writing these articles every week
This format is Rock Paper Scissors, where the stronger decks are strong enough to regularly overpower their supposed counters. Deck building almost does not matter anymore: it's all about high rolling for both Tier 1 decks, and no other decks can even come close to that.
What are Thunders doing there then? They're playing the “unofficial” spinoff of the game called “Rock Paper Scissors Lizard Spock”: The deck tries to force its way into the format with its own highrolls, but with much less success.
The meta is centralized around the Top 2 strategies: Blue-Eyes and Star Seraph Darklords. Very few decks can compete with either deck, and almost none can compete with both. Thunder Dragons remain solely because it has a power ceiling to fight against Blue-Eyes and Darklords. However, Thunder Dragons struggle because they are more limited in the number of power cards they have at their disposal and number of options to deal with Side Deck threats such as Loading... and Loading... . Loading... and the Star Seraph combo give both decks more more options and make them difficult to shut down; Loading... is effective against Loading... and Darklord monsters' copy effects, but it does nothing to inhibit a first turn Loading... nor does it prevent a Star Seraph combo from resolving. Ultimately, it is difficult to compete with a Graveyard negate that can tag out into a temporary Loading... or a Turn 1 combo that draws 2 and removes a card from the opposing player's hand. The upcoming Mini BOX will either change the meta going into the KC Cup, or we will be seeing a Blue-Eyes White Weekend with a helping of Star Seraphs.
There are no Tier 2 decks
Thunder Dragons remain at Tier 3. It is one of the few decks which can combat and fight against the two most dominant forces of this meta in Blue-Eyes and Star Seraph Darklords. Being able to main deck tech cards such as Loading... to banish Darklord cards, Loading... or even Loading... is decent at the moment. They also have a large extra deck toolbox, allowing them to play through an established Blue-Eyes board quite well. Another trend which has been observed is the Main-Decked Loading... to banish Loading... or other crucial Darklord cards, since Darklord players usually set their Sanctified without fearing the potential Cosmic. However, the deck still has its moments of unplayable hands and isn’t as consistent with their power plays, especially when compared to the Tier 1 decks. But it is definitely a deck to consider and has its place in this meta.