Banner Swordcraft is a deck that focuses on the main attributes of Swordcraft, swarming the board with lots of followers and pressuring your opponent's defense until it reaches 0. This deck utilizes several cards such as Floral Fencer, Alwida's Command and Sea Queen Otohime to summon a ton of followers which can be combined using Royal Banner, an amulet that pumps all followers on your field on its Fanfare and future summoned followers +1/+1. Combining this with Quickblader, Novice Trooper and Tsubaki's 2nd effect on Fanfare to gain Storm, you can inflict lots of damage to your opponent very quickly and effectively.
This deck includes searchers like Maid Leader [Evolved], 1 copy of Gemstaff Commander and 2 copies of Path To Purgatory to fill up your hand with followers and possibly draw into Royal Banner to begin your onslaught! I think Path To Purgatory is a great inclusion since a draw 3 can be crucial for this deck, helping you find your Storm answers and stack your hand with powerful cards while also serving as a defensive 6 damage board wipe when you're at 6 or less defense at the end of your turn which can help you feel less threatened towards enemy followers, allowing you to hone in on your opponent's defense. 1 copy of Gemstaff Commander is good imo since it isn't needed often but can be useful when you need to search for Tsubaki, Novice Trooper, and Aurelia, Regal Saber. 2 copies of Demonic Strike is another great option since it alllows you to kill your opponent quicker but also kill off any threats to your defense or boardstate. Sea Queen Otohime and Veteran Lancer serve as great cards for building up ward which becomes stronger under Royal Banner. Finally, 2 copies of White General to further buff your followers to help kill enemy followers or kill your opponent quicker.
This deck is quite strong imo (though I haven't really tested it since I am just trying to gets some decks up, I will update my decks if needed). A powerful weakness Swordcraft will likely experience is powerful boardwipe effects such as Fafnir, Dragon Wings and Conflageration from Dragoncraft, Mythril Golem, Alchemical Lore from Runecraft/Witch and Jeanne D'Arc from Havencraft/Bishop as examples. Since you are constantly wanting to flood the board in order to kill your opponent quickly, these cards can hinder your efforts and possibly put you under a losing position. In that case, you want to make sure that you preserve some of your cards in your hand so that you don't blunder against your opponent. By doing so, you can prepare for a boardwipe and quickly rebuild (Ofc, that all depends on your hand and the game's boardstate) in order to stay in the game. Another thing can be big followers since Swordcraft is usually on the lower end of stats since it is mostly based on swarming tactics and dealing damage to the enemy leader, so you want to make sure that you use Tsubaki wisely. You can also play 2 copies of Execution to help with this situation and possibly cut the Demonic Strikes if you are struggling with this problem (I also wanna quickly say that my advice may not be the most optimal thing but rather something you can consider. I am no expert in card games nor am I someone who has played in a truly competitive environment. Doesn't feel as necessary to say something like this but I felt like I might as well. See you all soon with the next decklist!).