Blackwing-Gale the Whirlwind
This is the best Tuner in the game. 1300 ATK and
400 ATK on a level 3 DARK Winged-Beast is not
generally a deal breaker, but it is a Tuner. This
allows it to be pretty much the swiss army knife of
the Blackwing deck, able to bring out easy level 6
and 7 monsters because of it's ability.
It's effects are that it can be Special Summoned
if you control a Blackwing that does not have the
same name. That is easy in Blackwings with Sirocco,
Shura and Bora being the heavy hitters of the deck.
The second effect allows you to halve the ATK of an
opponent's monster until it leave the field.
The second effect allows it to take down pretty
much any monster in the game with 2600 ATK or less.
It can even shrink down powerhouses like DAD and JD
to make them far more manageable in battle. You
combine that with a Tuner that Special Summons
itself and you have a seriously deadly card. On top
of that, it is a Blackwing, searchable by Shura and
Whirlwind and can be reused with Blizzard. That is
what make sthis the best Tuner in the game, with
Plaguespreader and Blizzard (the next 2) not even
really in the same league.
Blackwings are already powerful enough with Vayu
and all of it's tricks that Gale at one is suiting
the deck just fine. But if it ever should be at more
than one... Well, let's just say that won't happen.
I try to fit it in every deck I make, and when I
can't I make it fit.