mxind control's use would only be for stealing an opponent's monster and tuning it to get out a synchro or for example getting +1 out of scrap dragon... Your build isnt really the best as the format now beats that...no wonder uve had bad matchup vs six samurais, Lets start with the fixes
-2 Sirocco (the card isnt really as good as before it gives dead draws lots of times..)
-2 Kaluts (its great card but unfortunately limited)
-2 Kycoo (it doesnt do lots this format...cant really find reason to main them)
-2 D.D. crow (if ur gonna main this then one is the best number otherwise its better as a side deck card
-1 Vayu (Just to decrease the amount of dead draws and monsters count since blackwings these days need much protection)
-8
+1 Bora
+1 Blizzard (Thats the card which makes you push consistently)
+1 Zephyrus (amazing card -not in kcvds-)
+ 2 Spirit Reaper/Genex Ally Crusher/ Falcon of Mist Valley
each got its own use depends on ur style, reaper stalls samurais, pokes for +1s and overall good card, crusher gives u good defense and easy +1s whenever u summon a monster while falcon allow u to abuse cards like blizzard, fiendish chain which your gonna add nonetheless as well as being winged beast beater with no summoning conditions
+5 (now we r at 18 monsters which is quite good and also 40 deck count)
now to spells -1 my body as a shield (less viable this format, there r better options)
-1 mind control its not needed in blackwings since your tuner (blizzard gives u free synchro material and vayu doesnt tune on field unless summoned with shura...its just not that needed)
-1 Burial from different Dimension (this is not vayu turbo to use this)
-1 Mystical Space Typhoon (well consider icarus attack as a spell/trap removal + delta crow + seven tools u gonna add)
-1 Brain Control (again a banned card)
-1 Cards for black feather (not needed if you r gonna add dualities)
-1 Giant Trunade (your gonna run huge backrow urself so its bad card in blackwings and trust me when i say that
)
-7
+3 Pot of Duality (Staple in BWz, helps alot search you right card at right times or help you proceed consistently through the duel)
+2 Forbidden Chalice (thats a great card which slows down the tempo of other decks and boosts your attack whenever needed
+5
-2 Bottomless Trap Hole ( yes its a good card, but this format it cant hit shi en or stardust dragon which are pretty splashable and easily get-able in dragunity and samurai decks)
-1 Trap Dustshoot (more of a side card when you're sure you're going first)
-1 Starlight Road (you dont need this, actually others shall side this agains you)
-4
+1 Solemn Judgment
+2 Solemn Warning (Staples)
+2 Fiendish Chain (now thats a great card, its a veiler which can be abused much with falcon of mist valley)
+1 Dimensional Prison/ Compulsory Evacuation (whatever you like)
You also need to fit in a copy of seven tools of bandit... Just test and see what suits yo best and im sure you'll be alright