Worth pointing out that Stratos is the only WIND Elemental HERO (or monster in general, since all his non-HERO monsters are LIGHT) present in that particular deck of his.
We know Avian. He's the OG. I think they just were talking about the manga. I don't follow the manga, so I'm not sure whether Avian never showed there.
...I even said "that particular deck". Worth mentioning that the deck he had prior to obtaining his "nature hero" deck was basically equivalent to his anime deck, and did contain Avian. But he never used it alongside the nature heroes like Great Tornado. (Even though he did use several other of the anime HEROes like Sparkman and Wildheart.)
Anonymous
Jake