Hmm...
As you have 3 of each Blackwing Synchro monster but no other Synchro monsters I'll assume this is a deck for online play.
Total : 40
Very good. 40 cards is the optimal number.
Monsters : 23
3x Blackwing - Blizzard the far north.
3x Blackwing - Bora the spear.
1x Blackwing - Gale the whirlwind.
2x Blackwing - Ghibli the Searing Wind.
3x Blackwing - Shura the Blue Flame
1x Blackwing - Sirocco the Dawn
2x Blackwing - Vayu the emblem of honor
3x Blackwing - Kalut the moon shadow.
1x Blackwing - Elphin the raven
2x Blackwing - Fane the Steel chain
1x Dark Armed Dragon
1x Sangan.
Whoa, whoa. Time out. This list is not... actually very good. Blackwings run a very streamlined list of monsters... a friend has joked about the fact that typically 36 cards of every Blackwing build remains the same; I feel that it is true (and funny, as well), at least when one applies it to the monster count. 3 Kalut, 3 Sirocco, 3 Shura, 2 (or 3) Bora, 2 Blizzard, 2 (or 1) Vayu, 1 Gale, and 1 Dark Armed Dragon.
So let's come up with a list of monsters.
Monsters - 17
3 Blackwing - Shura the Blue Flame
3 Blackwing - Sirocco the Dawn
3 Blackwing - Kalut the Moon Shadow
2 Blackwing - Blizzard the Far North
2 Blackwing - Vayu the Grand Flag
2 Blackwing - Bora the Spear
1 Blackwing - Gale the Whirlwind
1 Dark Armed Dragon
That looks pretty good, given Blackwings are a breed of simplification-based and tech-based deck.
Spells : 7
2x Mystical Space Typhoon
2x Black-Winged Strafe
1x Black Whirlwind
2x Dark Eruption.
...Way too few actually good Spells. Black Whirlwind is a step in a good direction... however. Key spells in this build are Cards for Black Feathers, Allure of Darkness, and !!Pot of Duality!!. You should run 5 copies in total... that is, a 2-2-1 split between CfBF-PoD-Allure or a 1-3-1 split. Don't do a 3-1-1 split, with 3 CfBF, because CfBF is a little weak sometimes (like Solar Recharge) and we don't want to deaddraw our face open.
Spells - 10
2 Mystical Space Typhoon
2 Pot of Duality
2 Cards for Black Feathers
1 Allure of Darkness
1 Black Whirlwind
1 Monster Reborn
1 Dark Hole
That looks very good for the Spell lineup. A mix of primarily card draw combined with some power plays and 1-4-1 removal completes this complement.
Traps : 10
1x Mirror Force
1x Trap Stun
2x Icarus Attack
2x Delta Crow - Anti reverse
1x Torrential Tribute.
1x Blackwing - Backlash
1x Urgent tuning
1x Black Thunder
Traps are the most important part of a Blackwing deck. Delta Crow and Icarus are obvious choices, but I am unsure about Trap Stun, because Blackwings rely on Traps to make their deck go around. Icarus deserves to be upgraded to 3 as well. Seven Tools of the Bandit is actually very powerful this format, as it stops defensive moves like Bottomless Trap Hole, Torrential Tribute, and so on, as well as providing a good bulwark against the likes of Solemn Judgment and Warning; furthermore, it pushes against big sweeps for game by negating Trap Stun.
We are allowed 13 slots for Traps.
Traps - 13
3 Icarus Attack
2 Seven Tools of the Bandit
2 Bottomless Trap Hole
2 Solemn Warning
1 Mirror Force
1 Torrential Tribute
1 Solemn Judgment
1 Royal Oppression
A flexible, powerful Trap lineup seems good here. Delta Crow is not strictly necessary, now that everyone just plays around it. It's decent side-deck material, however.
Extra : 12
3x Black-Winged Dragon
3x Blackwing - Silverwind the Ascendant
3x Blackwing - Armor Master
3x Blackwing - Armed Wing
Ah, the Synchro toolbox! An important part of any deck. This toolbox could use some overhaul and work. Goyo, Brio, and friends are all missing here.
Something like this, perhaps!
Extra Deck - 15
2 Blackwing Armed Wing
2 Blackwing Armor Master
1 Blackwing - Silverwind the Ascendant
1 Ally of Justice Catastor
1 Magical Android
1 Goyo Guardian
1 Brionac, Dragon of the Ice Barrier
1 Black Rose Dragon
2 Stardust Dragon
1 Scrap Dragon
1 Red Dragon Archfiend
1 Dark End Dragon
I'd like to fit a Mist Wurm/Trishula or a Chimeratech Fortress Dragon somewhere in there, so you can think of something to take out. Perhaps a copy of Stardust or the lone RDA (or both!).
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