I play D-brigade and I play it PURE.
Old seals will be replaced with new seals, and prob 2 nume. Supreme connection searches anything and trashes anything from the brigade and allows to play cargo for 4 mem and from there you may play another briga to start swarming again OR you may play old darkdra for FREE, nice way to end duels.
Gankoo's fists are for non de-digivolvable threats such as fanglong and dexmon.
BIG WARNING, this deck plays so heavily into leviamon I just don't want to build shit to counter it, yo must evolve into cargo/tank in breeding and fucking sucks to do so, even I had to arrange cards in my topdeck to miss targets so not to trigger levia's rostrum. Abusolutely hate that MU, not reccomended for that.
Anyways, hard deck to pilot, but very rewarding if you learn to do so.
Edit: Okey, so after a few thoughts into it I ran into the conclusion that xu yulin doesn't clash as much as I thought it would, as it can be played with either cargodramon and briga, as well as being the solution for dexmon and fanglong (kinda, but better bc it's searchable) doing alliance with whatever you have on field as well as the 2K boost of missimon. Hyped to change tankdramon into the newer ones as well as sealsdramon with the new option replacing supreme connection (kinda sad my beloved BT4 darkdramon will probably have to go).
Edit 2: Ok, so long time no see, but after long sessions of testing and some tops in my locals I came up with this list, new tank is SO good it's unbelievable, it's an ace killer, briga enabler, and tower killer with inherit de digivolve, which you can brew to perform twice (once with briga and another on opp's turn via bt4 commandra if you top deck neat with bt14 commandra or bt16 seals). Another great card is the new long-ass name card, which makes xu yulin way easier to drop via it's delay OR prepare an absurd OTK via seals top decking another seals which you can play again with another option, which can top deck another seals so you can use delay again and so on, REALLY ABSURD if you can pull it off (which is relatively easy since this is a control deck focusing on controling the opponent and blocking everything they do while protecting your briga, so you have some turns to set the options.
Once again, REALLY hard deck to pilot and master, it punishes you for poor choices in top decking, but still has some great tools for removal for almost everything (hate 7dl for making some on play of high level, high cost, un de digivolvable chonky bodies; gotta rush hitting as hard as you can before they set up any shit, beelzemon goes really hard when he comes into play for f***ing free de digivolving your hardly achieved briga)
Anyways, fun and powerful deck but brain hurts after 5 rounds, send help.