Firstly, it is worth clarifying that this same Nabasu will spawn after a raid on a tavern in the place where the necromancer stood earlier.


Next, we need to take Siila with her spell "veil of positive energy" and the poor guy who will attack the boss (in my case, this is a horse)

To buy or get any spells, the essence of which I will describe further

• Spell summon 1-2
  
• Spell "create a pit" (Nenio has it) 2
  
• Spell "oil" (Woljif has it) 1
  
• Spell "restoration" 1-2, not "lower restoration"
  
• (OPTIONAL) Spell for movement 1

Summons:
Pit and oil:
Restoration:

0. Buffs of course. Everything you can;
1. First we put two characters with a high will closer to the boss and away from the other party members;
2. We bring the selected poor guy to the boss before reaching the agro line and block the path to enemes with pits and oil;

3. (OPTIONAL, if the poor guy is a humanoid) We cast "acceleration", "retreat" or any action that will increase the speed of movement of the poor guy;
4. Summon the summon and call the boss (you can't start fight with summon);

5. We run the poor guy back through the pit (and not the pit and the oil at once) so that he can run back to his own or fell into the pit and the boss did not see him;
6. The boss appears and passively sucks the level out of everyone around (so it's important to evaporate before he appears;
7. The next step, the boss does not see humanoids next to him and casts "exhaustion" on summon;
!important! The boss will move to the 9th step if the poor guy-humanoid does not have time to leave or fall into the pit.
8. (OPTIONAL) We cast the second summon while the first one has not yet managed to go to another world and trigger the boss to the second cast "exhaustion"

In total, the boss has only 2 casts of "exhaustion"
9. We stand stoically and wait for the boss to cast "Immobilization of a humanoid, massive" in those two with a high will that you put in front of him;
!important! He will not cast into a single target, which is why two are needed
!important! If Siila is paralyzed, restart
!important! If the others are standing too close to Siila and are paralyzed - restart and move the boys away

10. (OPTIONAL) If you missed the 8th step or it didn't work out, then we tank it by Siila and cast "recovery";
11. Ghouls spawn and falls into pits or into oil;
12. (OPTIONAL) If the ghouls decided not to fall into the pits, then read the 14th point;
13. Nabasu starts spamming "vampire touch" for 20+ damage, and we finally go on the attack;
14. After 3-4 rounds, Nabasu is killed (or not, it's the will of the dices), and the pits and oil have disappeared. We cast - undead damage (Siila must have it) to reduce the number of ghouls, because in a group they may be more dangerous than toothless (without his core spells) Nabasu.

On core difficulty, it took me 3 restarts the first time and 4 when I did it for the guide. It took 11 times on unfair difficulty (because the Siila didn't pass the damn roll for paralysis or the boss just refused to die)

Thank you for reading my probably useless guide, you've already passed everything here on unfair difficulty with ironman in solo first level. But in any case, I hope you liked it guide

And Sybil-tyan will come back to you next time. lov u ♥

My guide to the large water elemental: https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3077220420