Synchro focused variants of Blackwing have more slots for handtraps/board breakers, plays less bricks, end on boards with multiple forms of disruption that are spread out, and can play through handtraps fairly well, including Nibiru.
Main Combos:
Simoon + any Blackwing name: (combo created by Kkid)
https://www.duelingbook.com/replay?id=59311-39558849
Suthri: (combo created by Kkid)
https://www.duelingbook.com/replay?id=59311-39964811
Shamal + Vata: (combo created by JTSpeed)
https://www.duelingbook.com/replay?id=458507-41754044
Simoon, Suthri, and Shamal + Vata/Black Whirlwind are your main starters. There's more you can do if you open up better, like Suthri + Shamal/Vata/Black Whirlwind/Black Feather Whirlwind, Simoon + Whirlwind, etc. Instead of posting all those, I'll link replays that focus on playing through specific handtraps. On some replays, I skip some setup because almost every Simoon line goes something like -> Simoon, activate Whirlwind -> search Suthri, Normal Summon Suthri, search Vata + Shamal, activate Shamal to activate Feather Whirlwind, Vata special summon + effect to summon Black-Winged Dragon.
Simoon, Ash on Vata: (if they Ash Simoon normal summon, that can end your turn unless you have another name in hand you can normal summon)
https://www.duelingbook.com/replay?id=44857-42764806
Simoon, Ash on Wise Strix:
https://www.duelingbook.com/replay?id=44857-42772481
Simoon, Ghost Belle on Feather Whirlwind:
https://www.duelingbook.com/replay?id=44857-42772557
Simoon, Ghost Belle on Shamal 2nd effect:
https://www.duelingbook.com/replay?id=44857-42774534
Simoon + Gale, Nib on 5th summon (Suthri + Vata/Shamal/Black Whirlwind + Gale also works):
https://www.duelingbook.com/replay?id=44857-42763789
Simoon + Gale through Nib on Suthri 2nd NS:
https://www.duelingbook.com/replay?id=44857-42763943
Simoon + Gale through Nib on Wise Special Summon:
https://www.duelingbook.com/replay?id=44857-42764010
Simoon + Gale through Nib on FAM summon + Zephyros Bounce:
https://www.duelingbook.com/replay?id=44857-42764156
In actuality, it does not matter where they Nib you so long as you have Gale as an extender. If they decide to Nib you at the very end of your combo, you still end on FAM + Twin Shadow for 2 pops + Chinook. You can also choose to leave Assault Dragon in the ED, if everyone is playing Nib in their side deck or you think your opponent will wait to Nib you at the end, so then you can summon BWAD afterwards.
Deck Choices and other notes:
- None of the level 4 Blackwing extenders do anything in this synchro build. Your starters already do all the work in getting you to your full combo and opening hands like Suthri + Bora as opposed to just Suthri adds literally nothing to your end board and their level 4 non-tuner stats aren't favorable. Gale, Harmattan, and Oroshi are the only worthwhile extenders. Gale lets you play through Nib via Hawk Joe (also for easier Raikiri access), Harmattan can come up for when you need to synchro Shamal summoned off Wise Strix with Harmattan to make a level 6, and Oroshi let's you summon Hot Red Abyss easily.
- At least 2 or 3 level 2's are mandatory. 1 is needed to activate Vata's effect to send a level 2 + Zephyros (important), so it won't be a problem if you draw 1 level 2.
- At least 3 consistency cards are needed (Small World, Prosperity, and Allure are the best ones). You only have 6 1 card starters in the deck, so you need the extra consistency.
- PK engine adds unnecessary bricks and the endboards aren't that impressive comparing to what you could do in a Synchro focused deck playing minimal bricks. Dark Requiem takes more investment than I:P into Apollousa (using at least 2 monsters you summon off Twin Shadow + Feather Whirlwind on your opponent's turn). Kali Yuga builds can now get away with playing only the 1 Rank-Up Magic Launch as a brick, but the combo is too intricate and fragile to be consistent through handtraps. And you already deserve to be winning if your opponent opened literally nothing to stop your combo. The only advantage Kali has over Synchro is that it doesn't lose to Mystic Mine.
- The deck has 9 or 10 slots for handtraps/board breakers. Blackwing still struggles going 2nd so board breakers > handtraps.
- You can play Zonda + Kunai > Vayu if you want. They both accomplish the goal of getting a free body on board (preferrably level 5), so you should only play one or the other. Zonda requires you to play another soft brick, while Vayu takes a slot in your Extra deck.
- Optional cards in the extra: Draco Berserker of the Tenyi, Psy-Framelord Omega, Raikiri, Sohaya (if you play the Gamma package)
- Wing Requital is a winmore and terrible because it does NOT get you to your starters.