The sound of combat and the fiery explosion draws Henry to the fight. You can join in the next round. 

The Abomination lashes out at Modoc with clawed hands dripping with slag. It attacks 2x

Claw - piercing damage

Attack: 22 Damage: 9

On hit 1 fire damage

Claw

Attack: 26 Damage: 15

on hit 4 fire damage

Round 8

Post when able. Henry can also join the fight this round 

As Modoc sees the window, he gets an idea.  He'll attack recklessly again.

Attack 1: 27 Damage: 7

Attack 2: 14 Damage: 15

If one of those attacks hit, he'll bonus action hammering horns to push the abomination 10ft towards the window (Strength save 15 DC) and follow it if it is pushed.

OOC: Took off 10 damage (9 halved to 4 from rage + 6 fire) as the second attack hit.

Gaelan nods at the plan,

Elbow Strike Attack: 24 Damage: 10 DC 12 CON save vs Poisoned 

Hammer Hand Attack: 20 Damage: 7 DC 12 CON save vs Poisoned 

Knee to the Groin Attack: 26 Damage: 11 DC 12 CON save vs Poisoned 

Snap Kick Attack: 19 Damage: 10 DC 12 CON save vs Poisoned 

*Crusher Feat - move the target 5 feet towards the window on a hit, once per turn.

*Crusher Feat on Nat 20*

All attacks vs the target are at Advantage until the start of my next turn.

Knee to the groin coincidentally has no save vs poison. Gaelan is wearing long pants.

Eirikur watches his team work together like a symphony. A brutal chop with the greataxe, which, as Modoc follows through with the momentum of the swing, Gaelan leaps in from the opposite side, delivering a spinning elbow to the jaw, followed by a hammer hand. Modoc again swings his greataxe and, as if Gaelan anticipated it, jumps out of the way, only to dart back into combat with an especially savage knee to the groin, adding a snap kick to the face as the abomination doubles over from the knee to his mashed crotch.

Eirikur takes in this perfect display of teamwork with pride, but quickly refocuses on his own contributions to the battle. Having been 'helped' by Gaelan before, he knows this now spinning world will make it difficult to land a blow. He stows his sword and performs a quick gesture with a divine utterance and a dolorous bell sound is heard from seemingly nowhere.

OOC: Toll the Dead, Wis save of 14 or it takes 13 necrotic damage. Also, failed my Con save again, so still poisoned. :P

(You're assuming the bodily parts in the groin area are intact the creature still gets a save) 

Strength Save vs Modoc

20

Con Save vs Gaelen

17

13

13

24

The abomination is able to resist the powerful horns of Modoc but not Gaelen's pushes. The creature is pushes up against the window. 

Wis Save Vs Erikir

10

(Henry can post now) 

Quote from Weathervision >>

(You're assuming the bodily parts in the groin area are intact the creature still gets a save) 

 OOC: Nononono what I meant was Gaelan is wearing long pants so there is no skin contact. With no skin contact, there is no chance to cause poison. So no save needed. Sorry for wording it oddly.

(Oh, thanks for clarifying) 

Henry barges into the scene and moves straight up to the creature, striking with his enhanced fists,

Thunder Gauntlets: on hit, the target has diadv on attacks except against me until the start of my next turn.
Attack: 24 Damage: 11
Attack: 16 Damage: 7

(Nice amount of damage. The creature is moderately damaged) 

The Abomination

Recharge 

4

The abomination still against the window attacks Henry with claws 2x

Attack: 21 Damage: 7

On hit 3 fire damage

Attack: 19 Damage: 8

on hit 3 fire damage

Round 9

Post when able 

Gaelan draws his dagger and swipes it over his forearm before trying to stab the creature.

Stab Attack: 7 Damage: 11 DC 12 CON save vs 5 poison damage

More Stab Attack: 24 Damage: 7 DC 12 CON save vs 7 poison damage

Followup punch! Attack: 20 Damage: 4 DC 12 CON save vs Poisoned condition

Modoc continues hammering at the creature.

Attack: 19 Damage: 10

Attack: 13 Damage: 8

On a hit as a bonus action, he'll hit the creature again with his hammering horns (STR save DC 15)

If possible, Modoc is trying to knock this creature out the window and into the river.

Eirikur swallows hard, trying to resist the dry heaves. He repeats his divine utterances and quick gesture.

OOC: Toll the Dead. Wis save 14 or 20 necrotic damage.

Abomination strength save

11