Seeing his companion being targeted, Sigil runs to Talon's side to do battle together. The blood hunter is ready to attack.

Ooguay bellows: "Now I see... It is you again, isn't it? Some of you survived my ambush, did you not? That explains why I didn't feel the rush of immortality fill my muscles. I will not make the same mistake twice. This time, you will ALL die here!" His irritated demeanor switches to one of excitement: "Now, who's first?"

He rushes Graxximus, flying to his side with ease (he is up in the air, 10 feet away from the paladin):

-> Maul (melee weapon attack with reach): Attack: 25 Damage: 29 magical bludgeoning (I keep forgetting the d4 for Battlefield Inspiration: 1 for a total attack roll of 26).

Ooguay hits Graxximus hard, rocking him a bit:

-> Graxximus' CON saving throw {DC 15}: 16 - the paladin just manages to regain his balance.

(Charles, Nox, Graxximus and Le'gal are up next.)

Charles will head to EJ8. When he sees Ooguay and all the color leaves his face. He stands there motionless before shaking himself out of it. He takes bat guano and sulfur out of his pouch and runs his right palm against the left, causing a spark to shoot out towards Ooguay. 

Casting Fireball. Dex Save 18 (30 fire damage)

Using Sculpt Spells to allow ANY allies (including Sparklegem) in the range to automatically succeed their save and take NO damage.

 Nox move to EF8 and blink away (BA: Hidden Paths, Druid feat) for second Appearing again at EL8. Se get furious seeing Ooguay again and engulf both him and the angels with Fire Storm (Action: 8th lvl, DEX DC: 18 -> 35Fire damage, half on succesfull save.)

Rought estimate of Fire Storm

Nox then move to left corner while wistle to the beetles. EL4 (Stop if it trigger OA Ooguay for walking out his reach). When Nox stop whistling 8 glowing red dots come busting out the hallway ( dash = 60 total speed)

A small screeching sound come out the hallway a small group of beetles show up (EL8 45 movement spend, 15 leftover) and disperse all over the place.

**THIS WILL BE A TWO POST TURN IN ORDER TO NOT MANIPULATE DICE ROLLS**

Graxximus feeling inspired and hasted will nod to Le'gal.

Movement:  Graxximus will then fly up himself 10 feet to be level with Ooguay.

"We are not trapped.  You are!"

Bonus Action:  Graxximus will begin his Vow of Enmity against Ooguay.

Action:

Graxx will first make two attacks against Ooguay:

1st -Attack: 29 Damage: 9

2nd- Attack: 23 Damage: 11

Haste: Graxx will take his extra attack

3rd- Attack: 25 Damage: 13

Special(Action Surge): Graxx will make two more attacks.

4th- Attack: 23 Damage: 8

5th- 19 Damage: 8

(Special): Improved Divine Smite Radiant Damage:  6

For the HIS SAVE AGAINST THE BLUE BOI  Attack:  Graxx will use Bardic Inspiration Die :  8

For the First Attack:  Graxx will use Goading Attack WIS Save DC17:    Extra Damage:  6

For the Third Attack:  Graxx will use Menacing Attack WIS Save DC17:  Extra Damage 3

Graxx will burn three level 3 spell slots if three of his attacks hit for Divine Smite(Special):

 1st Divine Smite Extra Damage(Radiant): 17

2nd Divine Smite Extra Damage(Radiant): 19

3rd Divine Smite Extra Damage(Radiant): 15

If Graxx hit two more attacks he will burn 2 level two spell slots for Divine Smite:

4th Divine Smite Roll:  15

5th Divine Smite Roll:  14

Improved Divine Smite additional 4 rolls if attacks above hit Radiant Damage

17

Charles approach the large grassy room but does not enter it. A spark of fire flies toward Ooguay and explodes, but it purposefully avoids Graxximus, Sigil, and Spaklegem. The flames brush the Shadow Dragon, but pass straight through it, revealing its illusory nature to Charles.

-> Ooguay's DEX saving throw vs. Fireball {DC 18}: 19 (plus the always forgotten d4: 3 for a total of 28) - same flames catch the large celestial (Ooguay - CMD: 42).

(@Palfatreos: I'm placing the flame-sheets slightly differently from your picture --thanks for that btw-- because the Angels moved.)

Nox performs a similar stunt by casting Fire Storm around his friends and Spaklegem. Nox also catches on to the illusory nature of the dragon as the flames go past it.

-> Ooguay's DEX saving throw vs. Fireball {DC 18}: 29 - Ooguay invokes his innate holiness to brush off most of the fire despite not being able to dodge the flames in time (forcing a successful save through Legendary Resistance) (Ooguay - CMD: 59).

-> Battle-Angel#1's DEX saving throw vs. Fireball {DC 18}: 21 - Ducks in time (Battle Angel#1 - CMD: 21).

-> Battle-Angel#2's DEX saving throw vs. Fireball {DC 18}: 15 - Slapped by flames (Battle Angel#2 - CMD: 44). 

-> Battle-Angel#3's DEX saving throw vs. Fireball {DC 18}: 18 - Never sees it coming (Battle Angel#3 - CMD: 44).

Beatles invade the room. Despite engulfing her target in flames, Nox notices that the angels do not seem too bothered by the fire.

LEGENDARY ACTION (end of Nox's turn)

Almost ignoring the flames, Ooguay takes the chance to continue attacking Graxximus, his original target:

-> Maul (melee weapon attack with reach): Attack: 30 Damage: 22 magical bludgeoning.

-> Graxximus' CON saving throw {DC 15}: 25 + 8 from the Bardic Inspiration die for a total of 18 - The paladin avoids becoming stunned and incapacitated by virtue of Le’gal’s forethought.

(@All: Oh no.... I party-pooped the awesome turn! Does anyone want to take a reaction to fix it? I'll wait to resolve @Orileo's and @Grx's pending turns to see if anyone wants to react in any way...)

Precision Attack Roll for the 5th Attack: 6

Le'gal steps a bit closer to the room and enables Graxximus, having previously inspired him (we'll let this one go). The paladin uses this boon to float in the air after Ooguay, and unleash a barrage of radiant attacks:

The first attack hits the celestial on the gut:

-> Ooguay's WIS saving throw vs. Goading Attack {DC 17}: 23 - he does not feel particularly enticed to focus exclusively on Graxximus (Ooguay - CMD: 97).

The second swing of the mace hits an elbow (Ooguay - CMD: 133), while the third hits a glute as the large blueish man spins around mid-air in pain:

-> Ooguay's WIS saving throw vs. Menacing Attack {DC 17}: 29 - he is enraged instead of afraid (Ooguay - CMD: 167).

The forth attack smashes against the target's back (Ooguay - CMD: 193) while the follow up crunches on the still-turning Ooguay's ribs (Ooguay - CMD: 220).

LEGENDARY ACTION (end of Graxximus' turn)

Furious, Ooguay tries to knock Graxximus out:

-> Maul (melee weapon attack with reach) vs. Graxximus: Attack: 30 Damage: 27 magical bludgeoning.

Ooguay hits a revenge crit!

-> Graxximus' CON saving throw {DC 15}: 18 - This time, the paladin becomes stunned and incapacitated.

Without his wits to control his winged boots, Graxximus falls back to the ground, taking an additional 2 fall/bludgeoning damage.

END OF INITIATIVE ROUND 1

INITIATIVE ROUND 2

• 23. Talon - Shield is about to expire.
• 21. Battle-Angels - 
• 20. Sparklgem - concentrating on Illusory Dragon (counter: 9);
• 15. Sigil - Readied an attack;
• 11. Old-Friend - 
• 11. Charles - benefiting from Death Ward & Mage Armor;
• 11. Nox & the Beetles - benefiting from Death Ward;
• 09. Graxximus - benefiting from Haste, stunned and incapacitated;
• 08. Le'gal - benefiting from Death Ward, concentrating on Haste (counter: 9);

NOTE: All party members are still benefiting from Aid to some degree. All enemies are benefiting from Battlefield Inspiration.

THE HIGHLANDS BATTLEFIELD:

(Talon is up next.)

Talon decides to use another large reserve of his divine energy to try and finish this powerful blue foo!  The choice was between defense and offense but the look in Le'gal's eyes tells him to go for it!  He prepares with his patron's curse.  Then, reaching out with as much power as he can, Talon will attempt to call down fire on the blue giant.

BONUS ACTION: Hexblade's Curse (add 5 to damage and crit on 19 or 20)

ACTION: cast Scorching Ray level 5 (giving 6 rays):

#1 ray - Attack: 13 Damage: 16 + 1 damage from empowered spell (see next post)

#2 ray - Attack: 31 Damage: 21 + 5 damage from empowered spell (see next post)

#3 ray - Attack: 16 Damage: 8

#4 ray - Attack: 12 Damage: 16 + 2 damage from empowered spell (see next post)

#5 ray - Attack: 25 Damage: 17 + 2 damage from empowered spell (see next post)

#6 ray - Attack: 27 Damage: 13

Talon will expend a sorcery point to empower the Scorching Ray: Rerolling the two 1s from ray #2 and a three 2s from rays #1, #4 and #5

REROLLS:

Ray #2 rerolls 2  1

Ray #1 reroll 4

Ray #4 reroll 5

Ray #5 reroll 3 

Talon manipulates his blood to empower his innate spells. Six rays of fire fly toward Ooguay but their trajectory is as random as a gnomish fireworks' burst. Only one of those rays manage to singe the target's shoulder (Ooguay - CMD: 233).

LEGENDARY ACTION (end of Talon's turn)

Ooguay continues his furious onslaught:

-> Maul (melee weapon attack with reach) vs. Graxximus: Attack: 29 Damage: 31 magical bludgeoning.

-> Advantage roll from stunned: 37 (this is actually a 38 to hit I the d4 shouldn't be rerolled).

Graxximus takes another heavy blow, and continues to be out for the count for now.

The Battle Angels are intent on dealing with the weaver of fiendish/devilish magic, rushing Talon once again. "Cleanse our Fields!" one says, "For Mt. Celestia!" another answers.

-> Longsword (one-handed melee weapon attack) vs Talon: Attack: 10 Damage: 29 (of which: 5 is slashing and 24 is radiant damage).

-> Longsword (one-handed melee weapon attack) vs Talon: Attack: 23 Damage: 29 (of which: 8 is slashing and 21 is radiant damage).

-> Longsword (one-handed melee weapon attack) vs Talon: Attack: 21 Damage: 22 (of which: 8 is slashing and 14 is radiant damage).

-> Longsword (one-handed melee weapon attack) vs Talon: Attack: 25 Damage: 27 (of which: 6 is slashing and 21 is radiant damage).

-> Longsword (one-handed melee weapon attack) vs Talon: Attack: 29 Damage: 24 (of which: 5 is slashing and 19 is radiant damage).

-> Longsword (one-handed melee weapon attack) vs Talon: Attack: 27 Damage: 48 (of which: 11 is slashing and 37 is radiant damage).

Talon manages to block the first slash with his shield, but is quickly overwhelmed by the subsequent attacks (for a total of 150 damage). Talon is prone, unconscious, incapacitated, and needs to start rolling DEATH saving throws.

The approach of the Angels trigger Sigil's readied attack (Please roll a single attack as the Extra Attack feature can only be used in your own turn.)

The Angels then fly high, around 40 feet into the air (Again, no opportunity attacks). They spread around a bit this time, learning from the previous attack from the fake dragon.

Sparklegem takes a deep drag off his pipe:

-> Sparklegem's randomness die: 14

"Beetles!" he screams in fear.

The Dragon flies high and rains down its dark energy breath aiming at the beetles. The attack is reactive and not thought out, such that many others are within range of the wide breath attack, including those in the hallway and Sparklegem himself:

-> INT saving throws all around {DC 19}. On a failure, you take 21 necrotic damage, or 10 on a success:

• Sigil: 15 - takes 21 necrotic damage.
• Talon: 9 - takes 21 necrotic damage - counts as the first failure for DEATH saving throws.
• Graxximus: 11 - takes 21 necrotic damage.
• Charles: 26 - takes 10 necrotic damage.
• Le'gal: 19 - takes 10 necrotic damage.
• Nox: 26 - takes 10 necrotic damage.
• Beetles (as a group as even half damage would kill them): 2 - each takes 21 necrotic damage. They are all dead.
• Sparklegem: 25 - takes 10 necrotic damage.
• Ooguay: 30 - takes 10 necrotic damage (Ooguay - CMD: 243).

-> Concentration checks {DC 10}: 

• Sparklegem for Illusory Dragon: 22 
• Le'gal for Haste: 20

(Sigil is up next, including his one readied attack that was triggered.)

Readied Attack: 25 Damage: 9 Slashing + 7 Radiant

______________________________________________________________________________

Sigil looks down at Talon, and then up at the Empyrean. "I'm sorry, my friend. But this is something I must do. HEY BLUE BOY! WE HAVE UNFINISHED BUSINESS, YOU AND I!" Sigil runs towards the giant, fading in and out of existence as he goes. He unleashes a supernatural surge of attacks.

To Hit: 23 Damage: 8 Slashing + 5 Radiant

To Hit: 25 Damage: 8 Slashing + 5 Radiant

To Hit: 15 Damage: 14 Slashing + 4 Radiant

After the last attack, he chants and slices his own hand with the sword, taking 1 damage and activating an amplified Curse of Mutual Suffering. 

Sigil manages to slash one of the Angels before she flies away from Talon's limp body. The blood hunter notices that his sword's own streak of radiant light is not as damaging to the Angels as theirs were to Talon (Battle-Angel#3 - CMD: 56).

As the Angels maneuver out of reach, Sigil then turns his attention to Ooguay, who responds: "Ha! Which one of the sorry vermin I squished were you? The kenku? or perhaps the djinni-spawn? It matters not. I'll kill you again once I am done with this one;" he points to Graxximus.

(@Hydra: You can't walk up to the Empyrean because he is flying 10 feet off the ground. We'll say you ran and jumped to reach him. You use all of your movement to do this.)

Sigil performs a running jump, managing to slash Ooguay's feet twice before gravity forces him back down. This time, only the radiant wake of Sigil's blade seems to have any effect (Ooguay - CMD: 253). He also feels his blood curse take effect.

Ooguay mostly ignores Sigil for now, wanting to finish off his first opponent:

-> Maul (melee weapon attack with reach and advantage from stunned) vs. Graxximus: Attack: 39 Damage: 32 magical bludgeoning.

Like Talon before him, Graxximus is now prone, unconscious, incapacitated, and needs to start rolling DEATH saving throws.

"Now, a breather. Then you are next, human" he says looking at Sigil and flying upwards and away another 40 or so feet. Graxximus is no longer stunned.

(Charles, Nox, Graxximus and Le'gal are up next.)

Charles will sling another fireball at Ooguay. DC 18 Dex Save or take 53 fire damage (26.5 on successful save)

Charles is using his Overchannel wizard feature:

 Also he is using his Empowered Evocation wizard feature:

 He will take a step back to EI8.