Celestial Sword Q9 15% -1 energy regen

there arent many who collect dual zeal, but its rare mod i think it should be 50-100e but get more opinions

imo 100e+

There is no market for dual zeal,, except from collectors. Contrary the dual vamp, dual zeal has 0% utility anywhere in game.

So take w/e a collector will offer you, or merch, is what I would do.