Wave 1 Rnd 1  The duo do 20 dmg to the mephit after it closed to melee.

Rng 50ft for Adus and 60ft Felix;

SM1 Initiative: 16 Speed 30/30; AC 12; HP 2/22; Adus Initiative: 10 Speed 30; AC 14; HP 28/28; Beak Initiative: 14 Speed 10/60; AC 13; HP 1/1; Felix Initiative: 14 Speed 30; AC 18; HP 13/13;

SM1 uses it's Cinder Breath (Recharge 6). The mephit exhales a 15-foot cone of smoldering ash. Each creature in that area must succeed on a DC 10 Dexterity saving throw or be blinded until the end of the mephit’s next turn. Adus save 9 vs DC 10; Felix save 15 vs DC 10; Beak save 7 vs DC 10;

Wave 2 Rnd 2  In Melee and the imp blinds Felix; Adus and Beak normal attacks and Felix has disadvantage unless Felix has blind fighting

Rng 50ft for Adus and 60ft Felix;

SM1 Initiative: 16 Speed 30/30; AC 12; HP 2/22; Adus Initiative: 10 Speed 30; AC 14; HP 28/28; Beak Initiative: 14 Speed 10/60; AC 13; HP 1/1; Felix Initiative: 14 Speed 30; AC 18; HP 13/13;

Adus Great Sword(Graze) Attack: 13 Damage: 12 (slashing damage) or half (6); If miss then minimum damage is 4 dmg; Savage attacker Damage: Unable to parse dice roll. (slashing damage) or half (0);

Beak Helps

Adamantine Longsword(Sap) Attack: 16 Damage: 3 (slashing damage) or half (1); On a hit creature has Disadvantage on its next attack roll before the start of your next turn. Beak helps so normal roll.

Wave 1 rnd 1 the Adamantine Longsword should have crit rolled and didn't. Fixed the roll text and between the two SM1 dies on Rnd 1.

Wave 2 Rnd 1

50ft and 60ft range

All together or broken up into two waves
Wave 1, 1x Smoke Mephits CR 1/4 (50 XP each)
Wave 2, 2x Smoke Mephits CR 1/4 (50 XP each)
Volcanic Smoke Rewards (75 XP, coin stash 18 gp 7 sp 5 cp)

SM1 Initiative: 5 Speed 30/30; AC 12; HP 22/22; SM2 Initiative: 4 Speed 30/30; AC 12; HP 22/22; Adus Initiative: 3 Speed 30; AC 14; HP 28/28; Beak Initiative: 7 Speed 10/60; AC 13; HP 1/1; Felix Initiative: 18 Speed 30; AC 18; HP 13/13

Rng 50 for Adus and 60ft for Felix

SM1 Initiative: 22 Speed 30/30; AC 12; HP 22/22; Felix Initiative: 16 Speed 30; AC 18; HP 13/13; Beak Initiative: 13 Speed 10/60; AC 13; HP 1/1; Adus Initiative: 12 Speed 30; AC 14; HP 28/28; SM2 Initiative: 8 Speed 30/30; AC 12; HP 22/22;

SM1 moves 30ft and dashes 15ft to be in melee range of Adus; Felix Bonus Action Cast Hex, Target SM1 1; Cast True Strike, Adamantine Longsword(Sap) Attack SM1: 12 Damage: 14 (Slashing damage) or half (7); Beak helps; Adus is raging and wildshapes into a wolf; Attacks SM1 or moves 50ft to melee SM2;Attack: 23 Damage: 8 (Piercing damage, and the target has the Prone condition if it is Medium or smaller.) or half (4); SM2 moves to melee range same as SM1 or is in melee with Adus

SM1 moves to melee Adus; Felix moves up and hits for 15 dmg to SM1; Fogot Adus attack

Wolf Form attack Adus is raging and wild shapes into a wolf; Attacks SM1 or moves 50ft to melee SM2;Attack: 10 Damage: 8 (Piercing damage, and the target has the Prone condition if it is Medium or smaller.) or half (4)

Wave 2 Rnd 1 Rng 50 for Adus and 60ft for Felix

SM1 Initiative: 22 Speed 30/30; AC 12; HP 7/22; Felix Initiative: 16 Speed 30; AC 18; HP 13/13; Beak Initiative: 13 Speed 10/60; AC 13; HP 1/1; Adus Initiative: 12 Speed 30; AC 14; HP 28/28; SM2 Initiative: 8 Speed 30/30; AC 12; HP 22/22;

Felix Bonus Action move Hex, Target SM2 1; Cast True Strike,  Adamantine Longsword(Sap) Attack SM1: 10 Damage: 18 (Slashing damage) or half (9); Beak Helps; Adus Wolf Form attack Adus is raging and wild shapes into a wolf; Attacks SM1 or moves 50ft to melee SM2;Attack: 17 Damage: 7 (Piercing damage, and the target has the Prone condition if it is Medium or smaller.) or half (3); SM2 if prone gets up; SM2 Attack Felix: 21 Damage: 4 (slashing damage) or half (2);

Wave 2 Rnd 2 Felix misses unfortunately; Adus connects and does 7 dmg; Felix uses Shield and SM2 misses him;

SM1 Initiative: 22 Speed 30/30; AC 12; HP dead/22; Felix Initiative: 16 Speed 30; AC 18; HP 13/13; Beak Initiative: 13 Speed 10/60; AC 13; HP 1/1; Adus Initiative: 12 Speed 30; AC 14; HP 28/28; SM2 Initiative: 8 Speed 30/30; AC 12; HP 15/22;

Wave 2 Rnd 3

Felix Bonus Action Keep Hex, Target SM2 2; Cast True Strike, Adamantine Longsword(Sap) Attack SM1: 10 Damage: 13 (Slashing damage) or half (6); Beak helps; Adus is raging and wild shapes into a wolf; Attacks SM2: 9 Damage: 5 (Piercing damage, and the target has the Prone condition if it is Medium or smaller.) or half (2) 

SM2 Attack Felix: 10 Damage: 6 (bludgeoning damage) or half (3);

Everyone misses on that rnd

Wave 2 Rnd 4

Felix Bonus Action Keep Hex, Target SM2 2; Cast True Strike, Adamantine Longsword(Sap) Attack SM1: 17 Damage: 16 (Slashing damage) or half (8); Beak helps; Adus is raging and wild shapes into a wolf; Attacks SM2: 13 Damage: 7 (Piercing damage, and the target has the Prone condition if it is Medium or smaller.) or half (3); Savage Attacker Damage: Unable to parse dice roll. (Piercing damage, and the target has the Prone condition if it is Medium or smaller.) or half (0) 

SM2 Attack Felix: 15 Damage: 5 (bludgeoning damage) or half (2);

Adus does 6 dmg more the others miss

SM1 Initiative: 22 Speed 30/30; AC 12; HP dead/22; Felix Initiative: 16 Speed 30; AC 18; HP 13/13; Beak Initiative: 13 Speed 10/60; AC 13; HP 1/1; Adus Initiative: 12 Speed 30; AC 14; HP 28/28; SM2 Initiative: 8 Speed 30/30; AC 12; HP 9/22;

Wave 2 Rnd 5

Felix Bonus Action Keep Hex, Target SM2 4; Cast True Strike, Adamantine Longsword(Sap) Attack SM1: 10 Damage: 15 (Slashing damage) or half (7); Beak helps; Adus is raging and wild shapes into a wolf; Attacks SM2: 17 Damage: 8 (Piercing damage, and the target has the Prone condition if it is Medium or smaller.) or half (4); Savage Attacker Damage: Unable to parse dice roll. (Piercing damage, and the target has the Prone condition if it is Medium or smaller.) or half (0) 

SM2 Attack Felix: 13 Damage: 6 (bludgeoning damage) or half (3);

Wave 2 Rnd 5 Adus does 6 dmg to SM2 everyone else misses;

SM1 Initiative: 22 Speed 30/30; AC 12; HP dead/22; Felix Initiative: 16 Speed 30; AC 18; HP 13/13; Beak Initiative: 13 Speed 10/60; AC 13; HP 1/1; Adus Initiative: 12 Speed 30; AC 14; HP 28/28; SM2 Initiative: 8 Speed 30/30; AC 12; HP 9/22;

Felix Bonus Action Keep Hex, Target SM2 1; Cast True Strike, Adamantine Longsword(Sap) Attack SM1: 17 Damage: 11 (Slashing damage) or half (5); Beak helps; Adus Wolf From Bite Attacks SM2: 12 Damage: 8 (Piercing damage, and the target has the Prone condition if it is Medium or smaller.) or half (4); Savage attacker Damage: 7 (Piercing damage, and the target has the Prone condition if it is Medium or smaller.) or half (3)

SM2 Attack Felix: 5 Damage: Unable to parse dice roll. (bludgeoning damage) or half (0);

Felix connects and kills SM2 finally;  Volcanic Smoke Rewards (75 XP, coin stash 18 gp 7 sp 5 cp); The step out and do a long rest;

Encounter 3 tomorrow night maybe.

The Duo come back refreshed and hopefully ready to go.

Volcanic Magma (Encounter 3)
As you press further into the volcanic cave, the acrid smoke begins to thin, but the temperature rises noticeably with each step. The stone walls around you pulse with a faint red glow, veins of molten rock casting an ominous light on your path. Beads of sweat form on your skin, and the air feels thick, stifling with the intense heat.

All together or broken up into two waves
Wave 1, 2x Magma Mephits CR 1/2 (100 XP each)
Wave 2, 2x Magma Mephits CR 1/2 (100 XP each)
Volcanic Magma Rewards (400 XP, coin stash 100 gp)

MM1 Initiative: 13 Speed 30/30; AC 11; HP 22/22; Adus Initiative: 22 Speed 30; AC 14; HP 28/28; Beak Initiative: 6 Speed 10/60; AC 13; HP 1/1; Felix Initiative: 6 Speed 30; AC 18; HP 29/29

MM1 Initiative: 9 Speed 30/30; AC 11;

MM1 Initiative:  Speed 30/30; AC 11; HP 22/22; Adus Initiative: 4 Speed 30; AC 14; HP 28/28; Beak Initiative: 15 Speed 10/60; AC 13; HP 1/1; Felix Initiative: 13 Speed 30; AC 18; HP 29/29

MM2 Initiative: 15 Speed 30/30; AC 11; HP 22/22; there are two of them...grin.

MM1 Initiative: 20  Speed 30/30; AC 11; HP 22/22; Adus Initiative: 4 Speed 30; AC 14; HP 28/28; Beak Initiative: 15 Speed 10/60; AC 13; HP 1/1; Felix Initiative: 13 Speed 30; AC 18; HP 29/29

Wave 1 Rnd 1 Encounter 3

Wave 1 Rnd 1; Flex hits with 26 dmg on MM1 killing it; MM2 takes 10 damage; Adus and Felix save against Death burst

Death Burst Damage: 7 (Fire damage DC 11 Dex save for 1/2) or half (3); Adus save17; Felix save 16

MM1 Initiative: 20  Speed 30/30; AC 11; HP 22/22;  Beak Initiative: 15 Speed 10/60; AC 13; HP 1/1; MM2 Initiative: 15 Speed 30/30; AC 11; HP 22/22; Felix Initiative: 13 Speed 30; AC 18; HP 29/29; Adus Initiative: 4 Speed 30; AC 14; HP 28/28;