Notes & Combos
Branded Synchro isn't as well-positioned in a B01 ladder as a more traditional Branded Despia deck, but the deck has legs and can outgrind anything. T1 you're looking to set up Seals + Regained + Beast and trade with the opp, as you'll win any simplified gamestates via Regained.
The maindeck ratios might seems weird but you really need gas to keep up and push through the boards people are making; an extra, dead Thrust or High Spirits hurts a lot when you aren't doing playing through Lubellion. 2 Mercourier makes sure Gold Sarc isn't dead. Sarc + Crossout are the most cutable cards but Crossout feels great with everyone playing Branded rn.
The extra deck is really tight--Chengying or Chaos Angel would've helped a lot at times. I missed Banishment in the mirror, too. A going 1st Thrust target would've been helpful, too (probably Daruma or DBarrier since you aren't using Branded Fusion T1 otp often).