Caves of the Kobold Slave Masters

From his hidden spot, Vakas leaps at the demon, attacking him twice quickly with the Dragontooth dagger and then disengages from the beast, moving to cover (if possible) in the room.

Dragontooth dagger : 19 to hit, for 6 points of piercing damage, 6 points of acid damage, and 8 points of sneak attack damage.  

With the nick ability, he takes a second quick stab with it : 20 to hit, for 9 points of piercing damage and 2 points of acid damage.  

Total damage :  31 points 

Vakas you release a blur of violence upon the creature and it staggers back in agony. Thick viscus liquid pours from the demons open wounds and hisses as it falls upon the ground. There is nowhere to take cover within this space. Most of the furniture having already been dismantled to barricade the windows. 

Thannadol?

 Thannadol draws his wand in a smooth motion whirling to face the demon, with a quick flick he sends 5 bolts of force cracking into the hard shell (5 bolts, 5 force each: 25 Force DMG)
He then dances back a safe distance already chanting for his next spell

The already injured demon is pummelled over and over by the shining bolts of force bringing it close to death. In a last desperate attack it makes two claw attacks at you Vakas:

Attack: 14 Damage: 8

Attack: 23 Damage: 7

The second demon then slams in behind the first knocking it prone. The uninjured foe opens its mouth and releases an ear-splitting scream all make a DC 13 Wisdom saving through. (On a failure your next attack is at disadvantage).

Skritch's WIS Save (per log): 2 +6 = 8. Fail. Next attack with disadvantage. 

He backs back, on Sunhill, into a corner and casts Moonbeam, doing 9 radiant damage (half on a DC14 Con save) in a 10' diameter cylinder, hopefully capturing both demons. 

Dealuri sees the second demon pop up and is SURPRISED! (Wis save 9, so attack at Disadvantage). She tries her best to shot the new demon with her longbow (attack 19, 25) (damage 7). 

Vakas grimaces from the second claw attack (Temp HP now gone), and he covers his ears just in time with the screaming, bracing himself from the horrible sound.  

(Wisdom save : 18)

He attacks the prone demon, and if he finishes it off, he moves to the second one.  

Dragontooth dagger : 26 to hit, for 6 points of piercing damage, 6 points of acid damage, and 5 points of sneak attack damage.  

With his nick ability, he attacks again, likely moving to the second target if the first is down.  11 to hit, for 6 points of slashing damage and 6 points of acid damage.  

With his off hand, he attacks with his short sword as well.  19 to hit, for 2 points of piercing damage.