Lost in despair?

[Kaerwek]

In the Sher'Tur fortress entry area after Lake Nur, I encountered some sort of horror, called a Weirdling Beast. Lvl 25 Unique if I dont remember wrong. And my char was a level 15 or so Berzerker. On Normal mode, Roguelike. Decided to take the fight, and failed to flee in time... Bad call I guess, but I noticed some mechanics that I hadn't seen before.

I managed to get the Weirdling Beast down to some 30% hp, also whacking away a bone shield, and a bubble shield, but twice it healed itself up. Couldn't bring it down. In the meantime, I noticed that late in the fight my character was lost in dispair. This caused my escape skills to fail (Teleportation, and later also Phase Door).

Probably should learn to better use my items as well, such as the Eggs that summon two spiders e.g.

http://te4.org/characters/117392/tome/4 ... c3721de17d

Log for quicker access:

Sheila hits Iceblock for 5 lightning, 16 blight (20 total damage).
Weirdling Beast hits Sheila for (6 to ice), 8 blight (8 total damage).
Talent Sunder Armour is ready to use.
Acid Splash from Weirdling Beast hits Sheila for (4 to ice), 7 acid (7 total damage).

Sheila is confused and fails to use Healing Light.
Weirdling Beast uses Mind Sear.
Sheila resists the mind attack!
Weirdling Beast hits Sheila for (20 to ice), 31 mind (31 total damage).
Talent Infusion: Wild is ready to use.
Sheila overcomes the gloom
Acid Splash from Weirdling Beast hits Sheila for (4 to ice), 7 acid (7 total damage).

Sheila uses Infusion: Wild.
Sheila is free from the ice.
Sheila is cured!
Sheila lessens the pain.
Sheila casts Rune: Teleportation.
Sheila is lost in despair!
Weirdling Beast casts Taint: Devourer.
Sheila feels pain again.
Sheila is free from the acid.
Taint: Devourer hits Weirdling Beast for 75 healing, 75 healing (0 total damage) [150 healing].
Sheila hits Weirdling Beast for 4 lightning, 14 blight (18 total damage).
Weirdling Beast hits Sheila for 1 blight damage.
Talent Stunning Blow is ready to use.

Sheila is confused and fails to use Rune: Phase Door.
Weirdling Beast uses Mind Sear.
Saving game...

How does the Lost in Despair thing work really?

[Kaerwek]

Guess it was the Gloom? That I overcame every now and then?

[HousePet]

Its Gloom