"Owww..." Titaani whines, clutching her head. "Why is it that whenever I try to do that things go south? What am I doing wrong, Titania?"

Initiative: 13

Ben’s Initiative:  3

Matilda Initiative- 10

Horatio Initiative 18

Initiative:
Fomorian: 20
Horatio: 18
Titaani: 15
Matilda: 10
Ben: 3
Elkhorn: 15
Pud: 11

The formorian charges Matilda, but it takes the deformed giant a full round to run down the length of the massive banquet hall. (Dash.)

"Cake! Right now!"

Her turn ends at the entrance, her raised club about to pulverize Matilda. Everyone may act.

Ben:

”Why, you’re nothing more than a bully!” says Ben.  He hops up on the table next to the giant and draws his sword.  “Someone should teach you a lesson!” He exclaims, slashing twice at the cake fiend.

Longsword:  Attack: 26 Damage: 15

Longsword:  Attack: 9 Damage: 6

(( Reaction: Storm Rune: DC 13 Wis Save or the creature is charmed for 1 minute ))

If it appears to work, Horatio will yell for the others to not attack. 

(((( IF THAT DOESN'T WORK ))))

(( Bonus Action: Giant's Might ))

(( Action 1: Melee Attack 11, damage 11 ))

(( Action 2: Melee Attack: 17, Damage 7 ))

(( From Giant's Might add +3 to one attack that hit, if either did ))

Regardless of whether or not Horatio's rune works, Titaani will use her full speed to run south, away from the giantess. If Horatio's rune works, she will ready an action to fire eldritch blast at her on his command. 

If it doesn't work, however, Titaani's eyes glow purple as she casts phantasmal force on the giantess. "You want cake? I'll give you cake!"

If she fails her intelligence saving throw, the giant will see a multi tiered pink cake in the doorway, with cartoonish legs underneath it. It will run away if the giantess pursues.

Matilda dodges the blow, shifts away from the giant and moves as far south as she can.

Action-Dodge.

Bonus Action- Disengage,

Move- 30' South.

First, Horatio uses his Storm Rune. DC13 WIS Save: 3

The giant shakes off the effect, barely. 

Horatio enlarges to twice his normal size, but is still dwarfed by the massive formorian. He tries to wallop it, and succeeds with his second blow. She barely flinches - this thing is tough.

Titaani runs south, but not before putting a multi-tiered, pink, legged cake in the doorway, at least in the giant's mind: DC14 INT Save: 8

She immediately loses interest in the fight, and goes to eat the giant, pink, dancing, invisible-to-the-rest-of-you cake. "Cake!" she cries, delightedly.

Matilda runs south, ducking and dodging any new blows.

Pud and Ben still have an action before the hungry fomorian goes to eat the cake. Does Ben (Initiative 3) still want to go through with his longsword attack?

Ben:

Pivoting from his planned action…

”Ah yes, the cake!” says Ben, though he sees nothing.  “It seems to be heading back to the cauldron to join the other, bigger pieces the big lizard is eating!”

Ben rushes out into the hallway and prepares to open the doorway back the way they came, hoping the *cake* goes that way and they can get the giant and Jabberwocky to engage each other. 

With her eyes screwed shut with concentration, Titaani directs the cake to go where Ben said it would. 

Ben rushes down the hallway. (Make a Deception check!)

The fomorian chases the cake hallucination into the hallway, where she grabs handfuls of invisible retreating cake to stuff in her slobbering mouth. DC14 INT Save: 18

Ben’s Deception:  17

With a mouthful of nothing (and a successful save), the fomorian – even as she seems to buy at least part of what Ben was trying to sell her – realizes that the cake is nothing but an illusion. (Titaani's spell ends.)

She roars with anger and looks down at Pud with a hungry rage in her eyes.

Everyone may act!

Horatio continues to attack, calling the Formorian bad names in Giantish as he does, "You're a poxy lice-ridden motherless crumb-bum! Fight me if you can!" He is trying to draw it's attacks to himself. 

(( Action 1: Unarmed Strike: 18 to hit, 15 bludgeoning damage (including +4 from Giant's Might d6 roll).

(( Free Action: Fire Rune:  +4 fire damage (When you hit a creature with an attack using a weapon, you can invoke the rune to summon fiery shackles: the target takes an extra 2d6 fire damage, and it must succeed on a STR saving throw (DC:13) or be restrained for 1 minute. While restrained by the shackles, the target takes 2d6 fire damage at the start of each of its turns. The target can repeat the saving throw at the end of each of its turns, banishing the shackles on a success.) ))

(( Action 2: Unarmed Strike: 21 to hit, 10 bludgeoning damage ))

(( Second Wind: Unarmed Strike: 9 to hit, 6 bludgeoning damage ))

(( Bonus Action: Storm Rune: Disadvantage to one attack per round conferred to the Giant: You can invoke the rune as a bonus action to enter a prophetic state for 1 minute or until you’re incapacitated. Until the state ends, when you or another creature you can see within 60 ft. of you makes an attack roll, a saving throw, or an ability check, you can use your reaction to cause the roll to have advantage or disadvantage. Once you invoke this rune, you can’t do so again until you finish a short or long rest. ))

Giant Horatio rains down burning blows upon the disappointed, furious fomorian in the doorway. She definitely felt that. "You are MINE, little human!" she shouts at Horatio.

Elkhorn smiles and steps forward, raising his longsword:
Longsword Attack #1: 13. Hit: 7 slashing damage.
Longsword Attack #2: 4. Hit: 17 slashing damage.
He then makes a feint, catching the hungry giant off-guard. "I hate giants," Elkhorn growls, a slight smirk on his face.

Pud, Titaani, Matilda, and Ben may act next.