Mal will use his five dashes to cover the remaining distance, with a good 50-60 ft of movement to spare. Upon arriving, he will try to attack on of the devils with his rapier.

Attack: 18

damage: 7 + psychic blade: 12

"I'm afraid the time has come to demon-strate your fighting skill, you fiend!"

Mal races just ahead of Laniel, climbing the ladder to the rooftop where the devils surround Rethan. The closest devil is spined devil 0 (a 0 means attacking the weakest, SD1). Mal slashes at the devil, striking it with piercing and psychic damage. That is enough to end the foul creature.

(Rethan and Titus are next, in any order.)

(Also, updated distances: Morph is 35 feet from the devils and can still move this turn. Titus is 20 feet away. Laniel is about 15 feet of climbing a ladder away. Rethan and Mal are both within 5 feet of the devils.)

Morph hovers on the broom, 35ft away, waiting to see what Rethan decides to do.

Titus will move 20 feet to engage with the demon and strike at it with his ax

[item]Battleaxe[/item] Attack 1: 24 Damage: 4

Rethan nods to Morph, hating leaving his friends behind in the middle of a fight, but knowing they need to get the artifact away to safety and not risk losing it.  Concentrating on trollskull manor, he triggers the helm to teleport to the common room.  Teleport roll: 5.  Some force seems to resist his trip to the manor, seeming to squeeze him from every side.  The pressure gets tighter and tighter until Rethan feels like his limbs are going to start breaking from it, then suddenly the pressure vanishes and he appears in the common room of the manor, blood streaming from his nose and ears.

(Well that's not good)

(Looks like that makes it 14 damage and a new d100 roll: 87)

Titus strikes spined devil 2 squarely in its side, right before Rethan blinks away. Laniel finishes climbing the ladder and, seeing the devils posturing to fight, leaps into the fray, attacking SD2 with his quarterstaff and a spinning roundhouse kick.

Quarterstaff (2-handed) Attack: 10 Damage: 9

Kick Attack: 7 Damage: 8

Neither attack lands.

The devils, in their confusion, lash out angrily at Titus and Mal.

Bite Attack against Titus: 17 Damage: 2

Fork Attack against Titus: 16 Damage: 2

Bite Attack against Mal: 19 Damage: 5

Fork Attack against Mal: 13 Damage: 4

(Everyone may take a turn. Rethan, alone in the manor, must decide what to do next.)

Morph sees Rethan nod and make use of the helm, only the pop takes a little longer then normal and Morph sees Rethan's expression change to one of pain before he suddenly disappears.

Swallowing his concern and hoping Rethan got away ok, Morph continues with the plan.

Trying not to be noticed, Morph turns on the broom and tries to cast Silent Image without the devils noticing.

As he finishes, an image of Rethan, holding the stone, pops into excistance 60ft from Morph, on the side away from the fight, some 90ft away from the devils.

Morph turns back to his friends, while pointing at the image of Rethan,

"Keep the devils busy, we need to keep them from getting to Rethan!"

As Morph says this, the illusion of Rethan runs over to the edge of the roof it is on and jumps down, out of view.

Morph follows his own directions and points at Laniel and a soft light surrounds him for a moment, restoring some of his vitality.

"May the light strengthen you."

Action: Cast Silent Image: Create an image of Rethan some 90ft away from the devils, and have it move to the edge of the roof and jump out of sight.

Stealth check to try to conceal the casting (In case it is needed): 24 (Hopefully the devils are distracted enough)

Bonus Action: Use Healing Light on Laniel: 5 HP healed

Rethan stands panting through the pain for a few moments without moving.  Then he gives himself a shake and digs around for a towel, using it to wipe the blood from his face and ears.  Then he sits at one of the tables to wait to see what happens with the others, lifting the artifact tot he light to inspect it in the meantime.

The devils do not appear to have noticed Morph's spellcasting, glancing up at the image of Rethan as it disappears. They point in the illusion's direction and screech at each other.

Rethan:

(Mal and Titus are up.)

Titus steadies himself, he is panting from the chase and the hot sun is glaring down upon his metal armor. He then lunges forward, first with his shield and then he swings again at the spine devil.

Shield bash Athletics 18

Battleaxe  Attack 1: 9 Damage: 4

Battleaxe (if advantage applies): 6 Damage: 10f

Titus shoves spined devil 3 to the ground, knocking it prone. He then proceeds to slash it brutally with his battleaxe.

(Mal is up.)

Always down to join in on the fun of beating a prone enemy to death, Mal will attack the prone devil 3.

Attack: 19

damage:5

Mal gets in a glancing blow. Laniel piles on as well on the same downed devil.

Quarterstaff Attack (two-handed): 20 Damage: 6

Kick Attack: 16 Damage: 6

It rolls away from the quarterstaff but right into Laniel's kick, resulting in a serious crack and a grunt from the devil.

It strikes back, first standing, then firing two spines from its tail at (1: Laniel, 2: Mal, 3: Morph, 4: Titus - 1 and 3)

Tail Spine Attack agaisnt Morph: 17 Damage: 10

Tail Spine Attack against Mal: 5 Damage: 8

The other spined devil does the same (1: Laniel, 2: Mal, 3: Morph, 4: Titus - 4 and 4)

Tail Spine Attack against Laniel: 17 Damage: 5

Tail Spine Attack against Morph: 22 Damage: 6

Every spike finds its target, producing a piercing and burning wound on 3 of the 4 adventurers.

(Morph, Mal, Rethan, and Titus can go next in any order.

Morph encourages his friends in the fight,

"That the way, we only need to keep the devils occupied for another minutes or so, and Rethan will <AGH>"

Morph stops mid words has a spike impales him in the chest.

He looks down at the spike, as a trickle of blood comes from his mouth.

Morph looks back up at his companions, when a second spike impales him again in the chest.

Morphs eyes roll up and he and the broom spiral down onto the rooftop close below.

Morph slumps to the roof, his legs tangled with the broom, unmoving.

---------

10 + 9 damage takes out Myth's 18/24 HP.

Myth is now at 0/24 and making death saving throws: DC10: 7

1/3 Successes; 0/3 Failures

----------------------

(Edit: Fixed Max HP, yay Myth's alive :D)

Morph encourages his friends in the fight,

"Thats the way, we only need to keep the devils occupied for another minutes or so, and Rethan will <AGH>"

Morph stops mid words has a spike impales him in the chest, followed a moment later by a second one.

Not looking at all healthy, Morph turns the broom and flies back so he is 60ft away.

Then turning back, he raises a hand palm out at one of the standing/flying devils and unleashes a blast of eldritch energy at it.

Move: fly back so Morph is 60ft from his friends and the devils

Action: Cast Eldritch Blast at a standing or flying devil: Attack: 23 - Damage: 4 force damage

(Myth is now at 7/32 HP)

Morph's blast just missing one of the winged fiends.

Titus steps up and swings his battleaxe at the spined devil (SD3) again.

Battleaxe Attack: 24 Damage: 5

And Mal strikes at the same one as well. 

Rapier Attack: 22 Damage: 10

Both strikes land on the beast, causing an extended cry of pain.

Laniel then pounces on the same with a two-handed strike with his quarterstaff, followed by an ax kick to the creature's clavicle.

Quarterstaff Attack: 12 Damage: 9

Ax kick Attack: 13 Damage: 8

The creature is too fast and Laniel's blows only strike the roof at their feet.

The devil everyone gangs up on strikes at (1: Laniel, 2: Mal, 3: Titus - 2) with its fork and (1: Laniel, 2: Mal, 3: Titus - 3) with a bite.

Fork Attack against Mal: 19 Damage: 6

Bite Attack against Titus: 5 Damage: 4

The ignored devil fires off two more spines at (1: Laniel, 2: Mal, 3: Titus, 4: Morph - 1 and 1) 

Tail spine Attack against Titus: 18 Damage: 6

Tail spine Attack against Mal: 10 Damage: 6

(Everyone may go another round in any order.)

Titus roars out with as sweat and blood drip from his face, he leads again with his shield attempting to knock the devil prone, and then comes down with his battleaxe. 

Athletics 18

Battleaxe Attack : 8 Damage: 9

Battleaxe (If target is prone): 13 Damage: 8

(If Titus is able to connect successfully)
A blinding light radiates from the axe as it cuts into his foe

Divine Smite: 12

OOC: Is there a way to angle a sleep spell such that I won't be effected, but both devils will (i.e, placing the center of the 20 ft radius 21 ft away from me, or some such arrangement?)

(No DEX or STR contest is necessary. Even if the devil is not knocked down, it is slain.)

Titus summons power to help finish of the spined devil (SD3), enabling him to slice through the hide of the fiend where his blade could not easily do so before.

(Only one spined devil remains! Titus might possibly put to sleep if a sleep spell is cast away from Mal that still encircles the fiend.)

(Rethan is simply hanging out in the tavern to wait for the others to return.  NOT attuning the artifact yet)