Blackwing deck

Monsters:

2 Blackwing - Blizzard the Far North
3 Blackwing - Bora the Spear
1 Blackwing - Gale the Whirlwind
1 Blackwing - Kalut the Moon Shadow
3 Blackwing - Shura the Blue Flame
3 Blackwing - Sirocco the Dawn
2 Blackwing - Vayu the Emblem of Honor
1 Dark Armed Dragon
1 Gorz the Emissary of Darkness

Spells:

1 Allure of Darkness
1 Black Whirlwind
1 Book of Moon
1 Cards for Black Feathers
1 Dark Eruption
1 Dark Hole
1 Lightning Vortex
1 Monster Reborn
1 My Body as a Shield
2 Mystical Space Typhoon
1 Swallow's Nest
Traps:

1 Black Thunder
2 Bottomless Trap Hole
1 Call of the Haunted
2 Dimensional Prison
2 Icarus Attack
1 Mirror Force
1 Royal Oppression
1 Solemn Judgment
1 Torrential Tribute
1 Trap Dustshoot

Extra:

1 Ancient Fairy Dragon
1 Black Rose Dragon
1 Black-Winged Dragon
3 Blackwing Armed Wing
2 Blackwing Armor Master
1 Infernity Doom Dragon
1 Iron Chain Dragon
1 Stardust Dragon
1 Thought Ruler Archfiend
1 Vortex the Whirlwind

You also have some cards that aren't that good, such as: Lightning Vortex, Swallow's Nest, My Body as a Shield, Black Thunder. Trap Dustshoot isn't that good anymore with Heavy gone, as many people set a lot of their hand fast.

So if you take those 5 cards out, you can add something like:

2 Pot of Duality
1 Blackwing Zephyrus

That should also make the deck 40 cards.