Connor stands ready with hari allowing forjar  to get in position 

(Currently Rusty is in stealth)

Mid-Boss health is 39

(Rusty may start it off with a sneak attack then roll for initiative, going into normal rounds.)

Forjar Initiative when for after Rusty's SA: 2

Rusty sneaks up behind this unusually grotesque biological and attacks with his short sword and as a bonus action with his dagger and his two-handed weapon ability. 

Attack 9 Damage 9

Bonus attack 24 Damage 4

Harinit: 12

Initiative 8

(Rolling for Axon and Connor.)

Axon Ini - 15

Connor Ini - 17

Rutterkin's Health

35/39

Even through Rusty sneaks upon the fiend, his shortsword cannot break the tough skin of the fiend. But although the fiend now knows of Rusty, Rusty still manages to get a stab in with his dagger.

Initiative Order:

1. Connor
2. Axon
3. Hari
4. Rusty
5. Rutterkin
6. Forjar

Trying to get the monsters attention  connor shouts an insult at  it  with

vicious mockery wis save 12 

Damage 3

Axon watches the creature take the stabbing from Rusty and realizes that a higher form of artillery may be balled for. He uses his tools to readjust the mechanisms in his arms once more and a levitating force is emitted from them launching a small rock at the creature like a magic Catapult

OOC: DC14 Dex save or the creature takes 20  bludgeoning damage

Hari grins and launches herself at the creature, roaring, "For the vengeance of Dhakaan!" as she swings her longsword two handed at it.

Attack: 14 Damage: 11

Rusty attacks with his short sword and as a bonus action with his dagger and his two-weapon fighting ability. 

Short Sword Attack 25 Damage 9

Bonus action two-weapon fighting Dagger Attack 16 Damage 1

Dex Save: 22

Even as Axon's rock launches at incredible speeds, somehow the abomination dodges it, what's like a blur as the rock collides with a wall behind it. Hari meets the creature head on as she slashes the fiend with Rusty following up with both weapons. His shortsword finds no soft spot but his dagger manages once more.

Wis Save: 21

"I'd hate to see your mother or the donkey she screwed." Although the magic is in Connor's words, the fiend is unfazed.

Sneak attack Damage: 1

(Hari is by the fiend, so your sneak attack is active. You just need to hit to activate it.)

Boss' Health: 26/39

The rutterkin's mouth limb goes out to the party near him, looking to bite at 1

Attack: 12 Damage: 18

(Meant to put a 'Even for Hari, Odd for Rusty' in previous post but it would still miss either so no change.)

As the mouth closed in on Rusty, it started to look bigger. More and more so as it got closer, until it was obvious that the mouth has broken open. The limb itself opening up and is large enough to envelop Rusty's head. But quick reflexes kick in as the limb closes on air, Rusty avoiding it.

(Botting Forjar for the round.)

Two handed Warhammer Attack: 18 Damage: 9

Although Forjar has a slow start, he makes a heavy impact with his warhammer. The creature does stagger upon the mighty blow, but still stands as it gurgles towards the party.

Boss' Health 15/39

Connor, Axon, Hari, Rusty are up.

Axon feels a bit upset that his rock had so easily been avoided, he'd gotten rusty since he was on the battlefield, which was ironic given Rusty's seemingly acute ability to destroy fiends. 

Re adjusting once more to fire his internal heat blasts Axon leveled his arm at the creature and let fly another bolt of flame!

Attack: 20 Damage: 8

Hari spins her blade and launches herself at the creature again, singing a battle dirge in Goblin as she does.

Attack: 21 Damage: 4