Mystic Eye Accessory or Atk Raccoon Mask?

So I am in the process of doing everything I can to get my Wind Archer prepared for the Cygnus revamp, including collecting Crusader Coins. Before I buy the Mystic Eye Accessory, I just want to know if it would be a better option to purchase a Raccoon Mask with weapon attack and then cube it to Legendary Tier, or just get the Mystic Eye Accessory, scroll it for the bit of weapon attack I can get, and Legendary Tier it.

I would most likely aim for 12% dex on the Racc Mask vs. 21% dex on the Mystic...is the weapon attack more valuable than the 9% dex?

My other hesitation is that I am not sure if Nexon is going to go through another wave of duped item deletions...do you think they would do that again? Or am I worrying over nothing?

Thanks in advance for the help!