Trim and Reverie were nudging the discussion to have the party move away from this place, because the smell of lizard blood is thick here. You are also going to complain about the vultures, when you notice that they have all left (!).

There is a shadow overhead. As you look up, 3 javelin-like bone spikes rain down, attacking Trim, Theren, and Jack.

Attack1 vs, Trim: 9 Damage: 8 (Trim takes 10 damage)

Attack2 vs. Theren: 14 Damage: 4 (Theren avoids the spike)

Attack3 vs. Jack: 11 Damage: 10 (Jack hit for 6)

Looking up, you see dragon wings... and a lion's body. A tail with a dozen more of those spikes attached to it. From all descriptions, this is a Manticore. It had shot down those spikes when it was 90' above you, but has flown back to 110' in height above you.

Combat back on. Entire party is up. (Manticore is currently at 110' in height above you, and goes after you have all posted.)

(Damage status. .. after the first attack, Jack has taken 6 damage (hp 12/24) and Trim has taken 10 damage (hp 15/25). Reverie (9/28). Froskan (10/23) and Theren (24/24) not hit this round.)

What the-" Before jack can speak, his instincts tell him to throw his boomerang. He puts away his dagger and chucks his boomerang with all his might! 
Attack: 14 Damage: 5
"Everyone! Target the flying dragon lion thing!" (Bardic inspiration to trim. Add it to AC, attack, or damage. or any ability check)

(In case you forgot, one can draw a weapon as part of the attack action)

Trimyrai is going to try to attack the manticore

Movement: no movement this turn.

Bonus Action: activate Action Surge (Once per short rest, you can take one additional action on your turn)

Action: Attack: using an Arcane Shot: Bursting Arrow: (Immediately after the arrow hits a creature, the target and all other creatures within 10 ft. of it take 2d6 force damage each) (if i'm in range 150 (600) ) 26 (attack with longbow/piercing/force)

Damage: (if it hits) 4 (piercing damage) 3 (force damage)

Action: Attack: (if im in range) 9 (attack with longbow/piercing)

Damage: (if it hits) 5 (piercing damage)

edit: (well i just wasted an arcane shot :P )

Quote from EmperorKarino >>

 (if i'm in range 150 (600) )

 (I mentioned it was 110' above. It dropped to 90' range to attack.)

(It just HAD to go back to 110' feet away when chromatic orb is 90' range :P)

Froskan jumps to his feet as bone spikes rain down around them and searches the sky, spotting the manticore flying in the distance above them.  Unable to attack a creature so far away, he starts rolling his hands around each other, a ball of snow appearing and growing between them as he does so, getting ready to release it at the creature as soon as it approaches close enough for him to reach.

Ready Chromatic Orb (cold) for when the manticore gets back within 90'. 

Attack: 18 Damage: Unable to parse dice roll.

Reverie darts to look up at the sky, finding a Manticore flying above their heads. She curses under her breathe since she has nothing to attack them. And yet, she could Cure Wounds spell for the others who need the most during this fight. Later on, her steps quicken towards Jack and cast a Cure Wounds "Damn me for not having ranged weapons," she chuckles slightly and then looks up at a Manticore, looking for a chance to come down on the ground.

Cast, Cure Wounds- 10 (To Jack!)

"Ah, thanks!" (After the boomerang, jack moves as far back as he can, then drops prone. When a plane comes at you, you move away.)

Jack makes a mighty heave with his boomerang. Despite the distance and the toughness of the manticore's hide, it is a hit! Jack also runs a bit from the group, to spread out the targets, and dives down among some rocks for some cover (prone). (Note: Jack would pick a spot that was within 10' of where the boomerang fell to the ground.)

Trim uses his action surge to fire two arrows, but the manticore was able to evade them. Reverie heals 10 hp for Jack.

The manticore targets the two people firing at him (Jack, Trim) and a third tail spike at the uninjured person (Theren). It's guttural voice can be heard overhead (in Common): "Bleed faster! Fear! Panic! That makes man-elf-flesh tastier!"

It flies 30' down to 80', and there are 3 fewer spikes in its tail. It takes a painful blast of cold and ice from Froskan's orb. The manticore uses its remaining fly movement to get to 100' in height, cursing at the dragonborn since it is unable to respond with more tail spikes until next round.

Vs. Jack (disadvantage for prone target) - Attack: 8 Damage: 10 (misses, spike hits the ground an inch from Jack's head)

Vs. Trim - Attack: 24 Damage: 7 (misses)

Vs. Theren - Attack: 22 Damage: 4 (just misses)

Party is up. All five get to act. (Jack is currently prone. Manticore is 100' overhead.)

(Damage status... Manticore has taken 15 damage total. No hits by the tail spikes on the 2nd round. Jack was healed (hp 22/24), Trim (hp 15/25). Reverie (9/28). Froskan (10/23) and Theren (24/24). )

Jack runs out, standing up to get his boomerang, then throws it again. "Hey! Ye missed me! But I wont miss you!"

Attack: 5 Damage: 3

he then drops back prone.

Quote from BoboBoombang >>

Jack runs out, standing up to get his boomerang, then throws it again. "Hey! Ye missed me! But I wont miss you!"

Attack: 5 Damage: 3

he then drops back prone.

 (Irony at it's finest)

Froskan ducks behind the corpse of the stegosaurus, putting it between him and the manticore as much as possible as spikes continue to rain down among them, then readies another frozen orb to launch at the creature when it comes back in range.

Chromatic Orb (cold, second level spell slot this time)

Attack: 21 Damage: 21

Reverie watches the spiked-rain attack of a Manticore, frowning as her gaze shifts to Trim before she runs towards him. Once she runs towards right beside of Trim, she casts cure wound for him.

Cast, Cure Wounds - 6 (To Trim)

Trimyrai is going to try to attack the manticore again

Movement: no movement this turn.

Action: Attack: (my range 150 (600) ) 8 (attack with longbow/piercing)

Damage: (if it hits) 6 (piercing damage)

Bonus Action: Trimyrai: (to Reverie) "Thank you for the healing, i owe you one."

edit: (man i having the worst luck at the wrong time)

The manticore stays at 100' in height, circling over the party. It thinks about who to attack. Froskan has taken (3/4's) cover behind the stegosaurus body and dermal bone plates, and Jack is prone using the land itself for protection.

It notices Reverie healing the others, but wounded and out in the open. As it flies over her, it shoots 3 tail spikes.

Attack1: 24 Damage: 4, Attack2: 19 Damage: 6, Attack3: 17 Damage: 7 (Reverie is hit by 3 spikes, and is unconscious prone.)

(Froskan can continue Ready-ing his spell, keeping the to-hit roll he already made, if he wants. Trim was healed 6 points. Jack is prone. Party can post their round 3 actions. After the other 4 have posted, Reverie will make a death saving throw.)

(Damage status... Manticore has taken 15 damage total. Reverie is unconscious (hp 0/28) Trim was healed (21/25), Jack (22/24), Froskan (10/23), and Theren (24/24). ) (EDIT: Jack has healed Reverie to 5 HP, so some of the text no longer applies.)

Jack catches his boomerang. "Hey, what's wrong with ye? Cant ye see ye're losing?" Jack chucks his boomerang once more.
Attack: 9 Damage: 3

"Hey Reverie! Get back up here!" Jack beats his drum and casts Healing word (7), then goes back prone.

Captain Jack will get you alright tonight
And will make sure this beast pays
Captain Jack will get you by tonight
Just a little song, and you'll be healed today.

(Captain Jack. I don't know what the song is or what it's about, or even the tune, but I looked up Top 10 songs about  recovery and there it was. 
Oh, and Trim, you have a combat inspiration)

(Jack's boomerang hits, AND he heals Reverie to 5/28 HP. She is conscious, able to act this round, and is prone.)

(Jack's the best!)

(Yay! Reverie is back on conscious!)

Reverie grunts as she gets to be prone, back to consciousness. She looks at Jack, smiling slightly. ”Thank you, Jack!” She replies before she casts a last cure wound on herself before she could check on Manticore.

Cast, Cure Wound - 6

Froskan continues to hold his sphere of cold ready to launch at the Manticore as soon as it comes close enough.

Trimyrai is going to try to attack the manticore again

Movement: no movement this turn.

Action: Attack: (my range 150 (600) ) 26 (attack with longbow/piercing) (is it a d10 for inspiration? , if so Inspiration: 8 )

Damage: (if it hits) 4 (piercing damage) Inspiration: 5

Bonus Action: no bonus action this turn.

edit: (to fix the inspiration)

(d...6 and you can add that to damage if you want.)