i think doldrums might not be a good name for this
maybe something more like "jet stream"
only reason i say that is
"The Doldrums, also called the "equatorial calms", are the calms and light baffling winds"
not exactly an area air creatures would want to be in
Edit: on a side note doldrums gives me an idea for a lime card it would either restrict cards both players could lay per turn or be like a 2-3 turn silence that silences you and your opponent