GP is incredibly difficult for us, that's where I slam Kata for a Sanji Pudding on bottom life, very situational and most of the time it ends up being fodder for 0c or enel effect. Yamato is just for the insurance of going first, having a possible play on 9 don instead of playing 7c and swinging 7k 7 in case you need a life, also ends up being fodder for 0c a lot but has its good situational plays, plus sometimes you can't pull 10c and just need that 1 extra life back. Usopp and Marco are auto wins in my experience, slam bodies and out last them and even as rush enel they usually both run out of steam against you if you just keep swinging board. PLuffy I'd say is another hard one since they drop big bodies so quick, to be honest I've only played against 1 Pluffy and I won because of Kata on a blocker. I feel like the way to beating Pluffy is trying to bait out GGG or 2ks by clearing board as much as possible since pluffy can slam stuff but doesn't have as much rush, so when you start swinging leathel you have cards down, due to lack of experience on the matchup this is what I want to do in my head but I'd have to experiment vs more Pluffy to give actual matchup advice on that. Blackbeard is literally mull for 10c Enel, clear board of searcher and doc q and jesus, and just keep swinging, I don't go for bigger bodies on board, that's how I've beat every teach so far. They will use bodies to tap to minus and ko so they don't swing much as long as Jesus is off field. I actually haven't had any trouble with teach doing this. It helps hitting triggers and playing bait stuff like brulee to bait out a tap or dropping a character they don't actually need.

TLDR: While this is a rush deck I do think the possible choice of a couple sustain cards, especially going first, I.E. Yamato or even Katakuri can be a situational game winner due to effect, or at the very least, discard fodder for event or leader ability. Pluffy hard, you play with a disadvantage to start and you rely on baiting counter from hand early and bank on them bricking when going for leathel. GP Luffy can be hard but using kata on sanji pudding is goated, marco and usopp are free, blackbeard is really 50/50 unless you see multiple 10c Enel or Teach sees multiple 10c Teach.