Mordekai pops back into existence, 10ft further away from Nintra than he was - up against the bookshelf.  He fires a couple more Eldritch Blasts, calls out some Bardic Inspiration to Meepo, who's having to make some saving throws (a d8 to add to an attack roll, ability check or saving throw), and then hopes to blink out again...

Attack: 3 (Bless) + 28 Damage: 18

Attack: 1 (Bless) + 17 Damage: 11

Blink roll: 18

Meepo's five skeletons continue to fight on...
1 ... Attack: 23 Damage: 14
2 ... Attack: 24 Damage: 13
3 ... Attack: 16 Damage: 12
4 ... Attack: 15 Damage: 10
5 ... Attack: 13 Damage: 10

Meepo himself sends another series of 6 magical darts up to hit the princess...
magic missile
Force damage: 21

Oops, mirror image on Lionel's two attacks:  2 images left : 4. then next swing: 7

Both of Lionel's swing sweep through the air eliminating her two remaining images. 

The skeletons continue slamming their short swords into the elves. One looks particularly damaged, shot through with cracks and ready to fall. 

Meepo's magic missiles fly unerringly up to their target one after another spraying chips of glass while Mordekai appears ever so briefly, unleashes a two blasts, one of which hits, and then vanishes again with a brief pop. 

The princess pops away form Lionel with a faint sound, appearing back near the middle of the room.  She unleashes two glass daggers at Meepo. 

Attack on Meepo: 16 Damage: 10 (Con DC 20 or poisoned)

Attack on Meepo: 16 Damage: 11 (Con DC 20 or poisoned)

Nintra Recharge on 6 roll : 6

Nintra hovers backwards away from Lionel further, and around a corner from Meepo, using a bookshelf as cover. Several more images of her appear around her. 

Meanwhile, the six glass elven warriors swing their swords at the remaining skeletons: 

Attack: 11 Damage: 17

Attack: 26 Damage: 11

Attack: 17 Damage: 18

Attack: 12 Damage: 10

Attack: 22 Damage: 8

Attack: 21 Damage: 16

Attack: 22 Damage: 14

Attack: 19 Damage: 19

Attack: 11 Damage: 14

Attack: 16 Damage: 17

Attack: 11 Damage: 15

Attack: 25 Damage: 15

Attack: 13 Damage: 10

Attack: 17 Damage: 10

Attack: 12 Damage: 11

Attack: 21 Damage: 18

Attack: 11 Damage: 11

Attack: 24 Damage: 16

If any skeletons fall, the glass elf fighting them moves towards Ketch or Meepo, the two most readily available targets on the ground, ready to strike. 

Ketch, Lionel, you're both up.  

Ketch, there are two glass warriors who are now near you.  

Lionel, Nintra popped away and ran away again, and is 50 feet away and around a corner.

     Hmm, can’t block the way the glass warriors entered and Princess is all Hobert up above.  Ketch thinks more troops is still the way to go. Ignoring the glass warriors (assuming he has a path past them) he’ll head straight back to the doors the got magicked shut.  I think he may need to dash to get there…

If that's how she wanted to play - so be it. Lionel repeated the movement, except did not waste the holy power in the strikes.

BA - Misty steps + movement

Attack: Bless: 4 + 17 Damage: 12 +10
Attack: Bless: 3 + 16 Damage: 9

Mirror Image rolls for Lionel's attacks: 16 14

Ketch dashes past two of the warriors, they swing at him as he runs away from them. 

Attack on Ketch: 9 Damage: 8

Attack on Ketch: 15 Damage: 13

He reaches the door that has been partially pulled closed. Solid stone fills the doorway on the other side.

(Two images vanish as Lionel swims at the evasive shadowy figure.)

Mordekai / Meepo, you're up!

(Did she cast Mirror Image again? I thought 3 had already vanished?)

Mordekai pops back in, this time on the other side of the bookcase, and moves into the middle of that north section, so he can see the entire room, but with Meepo's skeletons handily blocking the way between him and any glass warriors. Then he'll send another couple of Eldritch Blasts at the Princess and hope to vanish again. 

Attack: 2 + 25 Damage: 9 plus 4 Hex damage. 

Attack: 3 + 30 Damage: 1 plus 2 Hex damage. 

Blink roll: 12

Mordekai blinks back in.  Yes, the princess must have cast mirror image again becuase there's another image of her again... 

He looks around, hoping to use a skeleton or two as cover, but realizes.....first that there are two elf warriors right near him, and two, that no skeletons remain to use as cover!  Luckily the two elf warriors are preoccupied swinging at Ketch and so Mordekai is free to move untroubled.  He sends two blasts at the princess. 

2 2 Image rolls. 

Both his blasts strike the princess.  

Attack: 11 Damage: 17 (miss)
Attack: 12 Damage: 9 (miss)
Attack: 22 Damage: 17 (injures #1)
Attack: 16 Damage: 14 (miss)
Attack: 25 Damage: 11 (destroys #1
Attack: 9 Damage: 18 (miss)
Attack: 22 Damage: 13 (injures #2)
Attack: 22 Damage: 9 (injures #2)
Attack: 26 Damage: 9 (destroys #2)
Attack: 22 Damage: 10 (injures #3)
Attack: 23 Damage: 17 (destroys #3)
Attack: 13 Damage: 14 (miss)
Attack: 24 Damage: 9 (Injures #4.)
Attack: 25 Damage: 17 (destroys #4.)
Attack: 11 Damage: 9 (miss)
Attack: 17 Damage: 12 (miss)
Attack: 19 Damage: 13 (Injures #5.)
Attack: 15 Damage: 13 (miss)

One skeleton left! lol.

Meepo casts shield again, deflecting one of the two attacks. The second hits though...
Poison save: 10
Concentration check: 26 DC is 10.

If meepo can move to get line of sight on the princess, without getting any attacks of opportunity on him, then he will do so, casting magic missile at her at fourth level. Force damage: 27

If he cannot do so, then he instead casts misty step to get himself to the top of one of the bookshelfs and out of reach of the mirror warriors. He then would use ray of frost on the princess.
To hit: 12 Damage: 16

His last skeleton continues to fight on... To hit: 24 Damage: 15

Meepo is also Blessed and can add the bonus.

Quote from Kaemgen >>

     Hmm, can’t block the way the glass warriors entered and Princess is all Hobert up above.  Ketch thinks more troops is still the way to go. Ignoring the glass warriors (assuming he has a path past them) he’ll head straight back to the doors the got magicked shut.  I think he may need to dash to get there…

 Forgot to move Spiritual Weapon 20’ towards the Princess, who I believed moved since it was summoned…if close enough to swing it will but it’s probably not.

Spiritual weapon Attack: 16 Damage: 13

plus 1 to attack from bless

(Both of Mordekai's attacks should have an extra +5 damage - forgot to add the modifier!)

Meepo can freely move to a spot to see the princess and lets loose with another barrage of magic missiles that slam into her, sending chunks of dark glass flying.  She's looking quite beat up, but doesn't go down. 

(Mordekai's +10 extra damage added). 

The spiritual weapon slowly chases after the princess but can't reach her, but if it dips a bit lower it can take a swipe at an elf on it's way, so it does, thwacking one in the head and sending shards of glass flying. Its not dead but badly damaged.

The last skeleton slams its blade into a glass elf.  It looks ready to collapse, with veins of broken glass all throughout its body.....but continues to fight. 

Once again Nintra shimmers and vanishes from Lionel's position and appears floating in the middle of the room.  She sends two shards of dark glass down at Mordekai who doesn't blink away and is still blasting her with magic.

Attack on Mordekai: 14 Damage: 8 (DC 20 con or be poisoned)

Attack on Mordekai: 15 Damage: 10 (DC 20 con or be poisoned)

Then she hovers around a bookshelf, once again getting cover from most everyone. 

The glass elf warriors try to finish off the last skeleton, then begin looking for a new target.  With a silent command from Nintra they seem to focus on Meepo......

Attack on Skeleton or Meepo: 26 Damage: 13

Attack on Skeleton or Meepo: 16 Damage: 10

Attack on Skeleton or Meepo: 20 Damage: 14

Attack on Skeleton or Meepo: 16 Damage: 12

Attack on Skeleton or Meepo: 12 Damage: 7

Attack on Skeleton or Meepo: 15 Damage: 12

Attack on Skeleton or Meepo: 27 Damage: 13

Attack on Skeleton or Meepo: 25 Damage: 16

Attack on Skeleton or Meepo: 20 Damage: 8

Attack on Skeleton or Meepo: 25 Damage: 10

Attack on Skeleton or Meepo: 19 Damage: 15

Attack on Skeleton or Meepo: 25 Damage: 12

Attack on Skeleton or Meepo: 27 Damage: 17

Attack on Skeleton or Meepo: 16 Damage: 15

Attack on Skeleton or Meepo: 26 Damage: 9

Attack on Skeleton or Meepo: 12 Damage: 12

Attack on Skeleton or Meepo: 24 Damage: 15

Attack on Skeleton or Meepo: 19 Damage: 11

Recharge on 6 : 2

More Nintra images appear around her. (Back to 3)

Lionel, Ketch, you're both up!   (she is once again 50 feet from Lionel and the spiritual weapon)

Why, oh, why not one of that smart wizards invented a fireball or something like that that gives time to escape before exploding! They could blink in and out safely, keeping the place ablaze. Oh, well. For now, Lionel had to blink alone.

BA - Misty steps + movement

Attack: Bless: 1 + 19 Damage: 10 +10
Attack: Bless: 2 + 27 Damage: 11

Spiritual Weapon will move 20’ towards the relocated Ninta and thwack any baddie that it can since it won’t reach her…

Ketch otherwise busies himself casting Dispel Magic on the stone blocking the main doorway… 3rd or lower spells dispelled or otherwise I must beat 10+Spell Level on a Wisdom Ability Check…  which I don’t think Bless helps with.

Wisdom Ability Check: 13

Which I fail, so 3rd level or lower only.

Spiritual Weapon Attack: 24 Damage: 10 plus 4 on attack from bless...

Ketch glances around at the battle behind him, but is eager to get the wall of stone out of the way. He casts dispel magic but the wall of stone is a higher level spell and his magic is unable to end it. He slams a fist in frustration on the solid rock. 

Meanwhile, behind him, his spiritual weapon swings downwards on it's endless chase of Nintra, and takes a swat at one of the most damaged elven statues.

Lionel flies towards Nintra, teleporting in a last burst to reach her, swinging at them. Image rolls: 11 18    Lionel's blade slashes through two images, that flash and vanish, leaving just Nintra and one copy left. 

Meepo, Mordekai, you're both up. 

DC20 CON save against poison: 18

DC10 CON save for concentration: 22

DC20 CON save against poison: 10

DC10 CON save for concentration: 22

I assume Meepo is down after that onslaught?

Mordekai fires 2 more Eldritch Blasts at Nintra, before casting Healing Word at 5th level on Meepo.

Attack: 2 + 19 Damage: 13

Attack: 2 + 25 Damage: 6

Healing Word (if Meepo is down): 18

And finally Blink roll: 11

(And the disadvantage second roll on that first attack, due to poison, which I forgot...2nd attack already missed, presumably...17)

Additional 2 for bless on that first concentration save.

So Hex is still up, adding 4 Hex damage on that hit. 

Sorry, that post was a horror show of mistakes and edits!!