Road to Phandalin

[DM - is the flamer just sitting on the forge?  Not moving?]

Attack: 11 Damage: 7

Drawing her bow string letting loose an arrow She tries to hit any Zombie on Dain "Lure them back this way out of that monsters sight!"

She steps back behind cover

Nobody and Margaret both peak out from behind their cover for a moment to shoot Zombie #8, it looks bad for a undead, but is still moving.

Zombie #1 attacks Dain:

Attack: 18 Damage: 5

(5 cold and 0 THP left, correct ?)

Seems correct for Dain, Armor of Agathys is gone after those two hits.

Dain disengages and moves back to join the others.

(Sorry my reply earlier got lost when i tried to post from my phone 🤦‍♂️)

Two of the three remaining Zombies follow Dain down the tunnel and one is able to catch up to him (also in melee with Margaret). He keeps on attacking Dain:

Attack: 23 Damage: 3 (really !?)

Round 5:

Margret does her usual switch to Talon and attacks the one in combat with her. 

Talon Attack: 9 Damage: 5

  Meanwhile she ponders Nobody's words "Maybe I could talk to the skull" In her mind it sounds weird coming from her mouth

Dain disengages again and continues moving away. "Yer turn to fight em." He tells the others, who would not support him earlier,when they had a chance to take on the group at once, together. He also doesn't want to bunch up when the flameskull starts throwing more magic around.

Otrov

attacks the nearest zombie - Attack: 16 Damage: 6

Disadvantage Margaret because of darkness: 19

Disadvantage Otrov because of darkness: 7

Dain, do you want to hide behind a stone table or go down a flight of stairs to hide at the bottom of it, or just straight south to be on the middle of the plateau?

Dain is not hiding, just moving further back from the enemy, then turning to aid his companions when his turn comes again. Probably ten or 15 feet past them, then stop and turn to help out.

Nobody looks at Dain incredulously as not only retreated, which had been initially fine, as he'd been repeatedly asked to fall back so that the narrower tunnel could actually be used to their advantage, but went the step even further to imply a lack of contribution in fighting the enemy. If he yet had a mind to comment however, the reminder of the approaching hoard robs him of the words.

Biting back a curse, he then silently prayed Azuth had somehow obstructed the Flaming Skulls progression in the arcane arts as he moved to join Margret's side in plugging up the tunnel, and at least limiting the third zombies ability to actually get into the fray. And even if such is not possible, he buried concerns as he drew forth Anybody and strode forth aiming to piercing the eye socket of one zombie. Again after striking, dead flesh and blood catches flame and is flung at a nearby zombie.

Movement: Into Melee, preferably blocking the tunnel alongside Margret if possible.

Action: Cast Black Flame Blade using Anybody and striking most weakened zombie.
To Hit: 20 For: 12 of non-magical piercing damage and 3 Fire damage to nearest zombie.

(Not support him earlier? MY Butt!)

(Future Reaction: Same as always. Unless targeted by Magic Missiles First, and in which case Nobody casts Shield, using Arcane Deflect on the 1st attack that would hit.)

Margarets attack is enough to strike down the Zombie that was already weakened by one of Otrovs bolt before and Nobody stabs the second zombie with his dagger.

You all see the green glow of the flameskull hover near the other end of the tunnel connecting both caverns. A bright streak of green fire flashes from the skull to a point between you and then blossoms with a low roar into an explosion of flame burning indiscriminate living and undead. It then floats back towards the furnace disappearing behind the tunnel walls. 

26 Dex save DC 13;Otrov gets a +5 bonus for 3/4 cover.

Zombie dex save: 7/ Con save:2 The zombie manages to avoid the brunt of the explosion, but eventually the fire burns to hot and destroys it.

Otrov 

Otrov is keeping on the stairs when she hears a loud roar and sees the cavern full with bright green light. She knows this can’t be good and so moves to fling herself out of its path.  Please not my face, my beautiful beautiful face! she thinks to herself....
Dex save - 26

14 damage on a save by the way. 

(Annnnnd there it is. :P Thank goodness for resistance.)

Dex Save[DC 13]: 24.

Nobody dropped down practically on fours in time for the worst of the flames to wash over his back, nearly losing his grip on the rapier in the process. But as the heat washed over the tiefling, he still shook and began bearing his teeth at the entity before they slipped back around the corner. "You... dare...." He growled under his breath.

The last Zombie slowly comes down the tunnel to attack Nobody:

Attack: 21 Damage: 5

but it is to slow.

Round 6:

If I remember right I poofed Marco into a pocket dimension. So save 12 reaction Absorb elements

Being behind the wall and seeing the flash of light streak their way she says "Duck!" turns to the wall and flattens her body against it her face towards the wall and whispers a few arcane syllables 

Dain dex save: 3
absorb elements

Brushing himself off, and wincing from the burns, Dain glances to the others. "OK, probably best head back some and find a place to rest up, I'm all out of spells now..."