It's no 3rd Edition perfect, but neither is NWN Try out the included module and test out the Nyth's abilities. There is an included chest in the test module with wands of lightning bolt, fireball, & magic missles - which you can use on the Nyths. Make sure you character is around level 12 or he/she may not be able to use the wands. Unless you can cast fire/electrical spells and magic missles.
Class2
Fighter /
Class1
Other / 04
Challenge Rating
05
Level1
04
AC
24
Race
Other
NPC
Yes
Attacks
1 bite
HD / HP
31
Damage
bite 1d4
Feats
Lightning Reflexes, Weapon Finesse
Scripts Included?
Yes
Dialog Included?
No
Type
4
Gender
Other
Abilities
Str 6, Dex 28, Con 10, Int 13, Wis 17, Cha 13
Initiative
+9
Skills
Listen +11, Spot +11
Size
Small
Alignment
Lawful Evil
Description
The Nyth is an aberation resembling a will-o'wisp. It is capable of absorbing fire and electrical damage, of which it converts into temporary hitpoints. If it reaches 60 hitpoints it fissures violently causing an explosion of magic missles hitting all living targets in a 30 ft radius, then it splits (fissures) into two smaller Nyth. The Nyth attacks by casting magic missle and uses invisibility to conceal its location while it hunts. It can also abso deflect magic missles back at any caster.