Divine Altar is a special PvE instance (shaped as an Upside down "U") for the guild members, and may be summoned once per day by the Guild Master at a cost of 50k or 200k guild wealth. The higher cost version gives 2x the XP from the monsters and possibly better drops
There is no level restrictions on who may enter, nor a limit to the number of guild members that can enter.
The aim of the instance is to keep waves of slowly approaching monsters from reaching the divine altar. Each wave gets progressively harder. Each wave has 40 monsters in them. The altar has 100 HP from the start and takes damage based on what wave level the monster attacking it is from.
The monsters are fought one at a time and will give EXP when killed along with a chance that they drop items like shadow crystal, enhanced bounty scroll, roses, or runes. There is also a "Miniboss", called a Seditionist, among them which yields extra EXP and possibly additional items.
The reward for taking part in the event is 3 shadow crystals and 1000 kyanite. There are also extra reward