(Corvin would have had his spiritual weapon moving as far towards himself as possible - 20 feet - during the empty round.)

Finding himself face to face with a third Hook Horror, Corvin tries to smash the creature with his Hammer while his spiritual weapon slashes at it from behind.

Hammer Attack: 23 Damage: 11

Spiritual Weapon Attack: 19 Damage: 15

29 damage 

Quote from Barlow >>

Tallis will spend the forst round following the retreating hook horror. His bow will shift and shrink (pact weapon changing to short sword) as he draws his mundane short sword.

 What square do you end your turn in?

Corvin steps forward 5 feet and smashes the Hook Horror with his hammer, while his Spiritual Weapon does more damage to the monster's back. 

Xavier, Velmine, Baik and Eiren are up.

Quote from Flyingmatthew >>

Corvin steps forward 5 feet ...

(Map shows me adjacent to it already)

Xavier will cast frostbite dc 16 con save or take 8 cold damage and have disadvantage on next weapon attack

Quote from Flyingmatthew >>

I'

Map edit: H3 should be in the GH column instead of the HI column 10 feet from Corvin and Eiren  

 

Quote from VanderLegion >>

Quote from Flyingmatthew >>

Corvin steps forward 5 feet ...

 

(Map shows me adjacent to it already)

Quote from Teechu >>

Xavier will cast frostbite dc 16 con save or take 8 cold damage and have disadvantage on next weapon attack

 At which target 

H3

H3 Con Save 11

Xavier casts a frostbite spell at the closest Hook Horror, who is momentarily chilled to the bone.

Baik runs to 18M and pokes at H4 with his spear. Hey you! Over here!
Attack: 17 Damage: 6

Attack: 11 Damage: 8

Baik pokes his spear at the fleeing Hook Horror and hit it once.

Tallis I need to know which square you ended your turn in. 

Velmine and Eiren are up.

Velmine you can make a Str check DC 11 to pull your dagger, or leave it for later. 

Qu'oth flies towards the Hook Horror (H3) engaged with Eiren, and the Shadar'kai spellsword uses the distraction to land a shocking grasp on the monster. 

// Spell Attack: 21 Damage: 8 lightning

// Rerolling the lowest of the two attack d20s (Elven Accuracy): 18

Seeing the lightning cascade over the hook horror, Eiren gets some distance (moving to L19) and aims an arrow for its midsection (Bonus Action).

// Longbow Attack: 23 Damage: 8 piercing

Eiren then puts his bow away, preparing to draw his sword at the next opportunity...

(DM Question, can we tell where these Horrors came from? Like, they just materialized out of nowhere? Or something else?)

Velmine leaves the dagger behind, and pulls the rapier while calling the goat to come closer to H3 and help on her attack.

Attack: 16 Damage: 32 (Sneak attack from advantage, and advantage from the goat's help.)

(Edit: And another one...)

Eiren's two attacks leaves the Hook Horror is a bad state and then with the help of the goat, Velmine finishes it off by decapitating it.

(H3 and H4 were also hanging out on the cliffs, pretty much where Xavier centered his spell. I made them a little harder to see because of the trees and whoever made the perception check missed them by 1. I gave Baik a chance to see them when he moved up to attack H2, but he rolled poorly.)

(Cool just trying to figure out if they weren’t an illusion or something! But damn, that sneak attack damage tho!!)

Tallis I need to know which square you ended your turn in before the remaining Hook Horror moves.

(Sorry for the late response. Work has been crazy, to put it mildly. I'll end my turn in H21 by the trees. Surprise round to attack with the bow, first actual round of initiative to switch to pact & normal short swords, then charging into melee on 2nd initiative round.)

The last Hook Horror continuous it's run going to U,V-19,21 (looks like I missed 2) and puts down what it's carrying and turning around rushes back only to end up in the same spot.

Baik can make an opportunity attack.

After that the party can art.

Just realized that I put W4 instead of H4 sorry I made this map in a hurry. 

// Quick correction, Eiren moved to L19 after casting his cantrip. //