On the other hand, you can choose to neglect Owl Quills.

Maybe build just one right at the start of the game. A quill is just 3RP, and you get 3RP out of a tribal shaman for about 100 gold, or 4RP with magic scales. Air gems are better off saved for Mist, Arrow Fend, Trapeze, Air Elementals, Fog Warriors, etc IMO (and maybe the occasional strategic Seeking Arrow barrage).
You could use an A3W4E4S4N4 Great Enchantress in CBM with Order-3,Cold-1,Misf-1,Magic-1. Vanadrotts and Vanjarls have low base protection so you're not getting much benefit from an expensive E9 bless.