A phalanx at the Mound of Pain coordinates (49,67) in the Terraca Forest, the quest is done as follows:

1, first of all, the player needs to come to the location of the following picture in the Terraca Forest.

2, find the NPC Volkun to take the task of evil proximity.

3, then players need to come to the location pictured below.

4, kill the small monsters around.

5. The Emblem of Destruction will drop and you need to get 20 of them.

6. Then there is a spell at coordinates (49,67).

7. Click on Use Terror Sacrament and the Emblem of Destruction will be placed automatically.

8. After that the phalanx will start summoning.

9. Cursed Terrobus will then appear.

10: Kill it and you'll complete the quest.