Aetherblade Armor Skins
I bought it this year, don’t remember exactly when. Other than Anet currently posting a schedule for the anniversary sales, we never know. Hopefully it will be offered for you during the anniversary, so keep watching.
There is a utility that will notify you when things appear in the gem shop. Google it, or wait for some nice soul who actually uses it to come along and provide a link.
I bought it this year, don’t remember exactly when. Other than Anet currently posting a schedule for the anniversary sales, we never know. Hopefully it will be offered for you during the anniversary, so keep watching.
There is a utility that will notify you when things appear in the gem shop. Google it, or wait for some nice soul who actually uses it to come along and provide a link.
That nice soul is Astral Projections who puts it at the top of each page of the sticky thread. https://forum-en.gw2archive.eu/forum/game/gw2/Gemstore-items-new-sales-discounted-prices/page/10#post6639990
I got mine in March for 400 gems.