Remains of Sahlahja (mission)

Challenge Mission. This is a solo challenge mission. The goal is to kill as many enemies as possible without dying with help from your friendly undead wurm. This mission is not timed, but you have a constant health degeneration of 1. There are 5 different areas in this challenge. You start out in the center and have 4 locked doors to the other areas at the beginning. For every 15 points you earn you unlock a new section. The Maddened Spirits are basically invincible and deal massive damage to you (1 hit kill if you are not in a wurm), but after you kill a Greater Infestation you get a special enchantment on you for a short period that allows you to kill the spirits. Lost Souls will spawn at some random location on the map after a certain time. There can be more than one spirit on the map at the same time.

The 4 types of enemies:

! Enemy Type !! Points ! Infestation || 1 ! Greater Infestation || 3 ! Maddened Spirit || 4 ! Lost Soul || 8
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Rewards
You get Ancient Armor Remnants for completing this challenge, which can be used to change skin of armors for either Tahlkora, Zhed Shadowhoof, Master of Whispers or Margrid the Sly.

- Although it's still not clear what you have to do to get armor, but it seems that higher scores have a better chance of receiving them. Killing Lost Souls is believed to increase your chances too.

Tactics notes

 * The best method so far is to camp near a Greater Infestation and keep it near death as you kill Infestations. Keep an eye on your radar and watch for a moving red dot, then as the Maddened Spirit gets near you kill the Greater Infestation. You should then be able to kill the spirit and move on to camp the next Greater Infestation.
 * To heal you can either build up your adrenaline and use Junundu Smash to KD a mob then use Junundu Bite (given that the first attack doesn't kill your target) to heal for 500 hp. You can also use Junundu Tunnel then use Junundu Bite to KD and heal for 500 hp too. You can also use Junundu Wail to heal for 500 hp if there are no enemies near you.
 * Another way to heal is to get a new wurm, but you are very vulnerable while doing this so be careful.
 * Protective Spirit works to protect you when you are out of the wurm, but the enchantment allowing you to deal damage to the spirit only affects the wurm form. So staying out of the wurm is not an option.
 * the maddened spirits are unaffected by conditions