You played in that event! You've got the achievement for it. https://www.lordswm.com/forum_messages.php?tid=1892008 this was the reward post. You can go back to page 1 and 2 of the announcements section and read about it.
That crypt photo, you earned things in battle that the whole server used to unlock some basic arts for the shop.
This topic is long since last update and considered obsolete for further discussions.
