
Aubrey the Demented/Malformed |

Fishy 1 1d20 + 4 ⇒ (2) + 4 = 6
Fishy 2 1d20 + 4 ⇒ (5) + 4 = 9
Skelly 24
Nalverren 14+
Wultram 14-
Fishy 2 9
Fishy 1 6+
Tal 6
Ashshar 6-
Cole 4
Rehil ?
Vaard ?
Map. Effectively, the upper portions of this building are an empty vertical square tube about 100' long. The dark grey shows the walls. The light grey and blue is a representation of the ceiling - the light grey shows the solid remains of the dome and roof, while the blue shows where the hole is.
You are inside the building, somewhere between 10 and 50' from the roof and the aperture. This fight is in 3D - height will be measured in feet from the roof, so Fishy 1 is 10' from the roof and Fishy 2 is 30' from the roof. Your reach will similarly be in 3D, so you will have reach above and below you as well as around.
No idea how this will play out - let's see! Please place yourselves, noting height as well as position.

Tal'Va'Nocht |

Remember, we are all tied together by ropes, 20 ft apart, so you can't be more than 20 ft from 2 other people. Tal would be in the middle, as healer.
Tal, M10, 10ft down (centered myself around everyone)
Ash* 57/57, Cole* 85/85, Nalvarren 52/52, Rehil 54/54, Tal 51/51, Vaard* 62/62, Wultraam 40/40
My assumption is Ash, Cole, and Vaard are the front line folks right now, so I've linked them up for auto-heal. Please confirm.

Rehil Ecraish |

Init: 1d20 + 4 ⇒ (13) + 4 = 17
Sorry, I thought I'd already rolled. Place me in O10, 10' down.

Wultram Denka |
3D with 2D maps, and communicating via pbp, I am predicting a mess.
Well I would assume we would stay at the same depth more or less. Have skeleton be P-10 at 10ft, Wultram same depth at J-10.

Nalverren |

i'll be behind Tal, ostensibly above and behind

Aubrey the Demented/Malformed |

Nalverren |

N10 at 15ft, i suppose

Rehil Ecraish |

Tenro, vertical coordinate is depth. If you want to be above Tal you need to try 5'.

Nalverren |

ay yes you are correct. I was thinking elevation.

Aubrey the Demented/Malformed |

Wultram Denka |
Sorry for the delay, christmas circus is in full swing.
Swim: 1d20 + 7 - 3 ⇒ (20) + 7 - 3 = 24 Yes that is where I want nat 20 to be
The skeleton moves closer to the creature and thrust the spear towards it.
Attack: 1d20 + 10 ⇒ (9) + 10 = 19 Damage: 1d8 + 4 ⇒ (4) + 4 = 8
Move to P-9(Pretty sure 5ft step is not a thing when swimming at least without swimspeed) and then standard attack

Aubrey the Demented/Malformed |

Vaard |

Either way:
The Cold Sun calls his allies to action:
Swift action: Martial's Order: Advance
As a swift action, you can expend one use of mythic power to inspire a tactical advance on the field of battle. This allows you and each of your allies within 30 feet to take either a single move action of the character's choice or a 5-foot step, as long as you or your ally has the ability to take such an action (for example, an unconscious character still can't take an action). The action granted by this ability doesn't count toward the number or type of actions a creature is allowed to take on its turn.
Heeding his own advice, the lizardfolk swims northeast until he is just above the fish, before lashing out with his teeth.
Swim to O7 as a move action.bite: 1d20 + 10 ⇒ (5) + 10 = 15
1d4 + 1d6 + 4 ⇒ (3) + (1) + 4 = 8
another bite: 1d20 + 5 ⇒ (15) + 5 = 20
1d4 + 1d6 + 4 ⇒ (2) + (4) + 4 = 10
claw: 1d20 + 8 ⇒ (2) + 8 = 10
1d4 + 1d6 + 4 ⇒ (2) + (5) + 4 = 11
other claw: 1d20 + 8 ⇒ (19) + 8 = 27
1d4 + 1d6 + 4 ⇒ (1) + (3) + 4 = 8
Attack bonuses could be higher if someone uses the move action from Marshal's Order to flank. If being underwater prevents the use of Pugilist Stance, then ignore all the d6 damage dice.

Rehil Ecraish |

Seeing the nearest threat well engaged, Rehil moves to cover the rear of the party from the second fish.
Move to M11 and down to 15 feet. Ready spear strike if it comes within reach.

Aubrey the Demented/Malformed |

Okay, here's something I'm not sure about: does being underwater affect my ability to assume stances?
I see no reason why being underwater should have any impact at all on your stances. Despite the name, I doubt they rely on the way you stand.
Claw and teeth gain savage purchase on the fish's armoured hide.
Just noting that the fish are currently flat-footed/flat-finned/whatever so any move actions you take off the back of Vaard's power should probably be taken now to avoid AoOs for when it is their turn in the initiative.
I'm also assuming that Rehil's move just then was the one granted by Vaard. Does he want to do anything else with his full round of actions, since he's after Vaard in the initiative order?

Rehil Ecraish |

If I can, I'd like to Double move to J15 -- 15' depth, and I'll hope for a AoO if the fish goes for the back of the other PCs. Still at 15' depth.
Ashshar, it's going to be a couple rounds before I can support you. directly.

Ashshar |

If I can, I'd like to Double move to J15 -- 15' depth, and I'll hope for a AoO if the fish goes for the back of the other PCs. Still at 15' depth.
Ashshar, it's going to be a couple rounds before I can support you. directly.
If y'all manage to kill Fishy #1 while I distract #2, and kill it fast, I won't worry. But do try to make it fast, wouldn't want to survive Kalaktua just to get killed by her usual dinner.

Nalverren |

Nalverren will shoot his bow at Fish 2, utilizing Arcane Strike.
atk: 1d20 + 7 ⇒ (14) + 7 = 21
dmg: 1d6 + 2 ⇒ (5) + 2 = 7

Wultram Denka |
Swim: 1d20 - 3 ⇒ (7) - 3 = 4
Swim: 1d20 - 3 ⇒ (9) - 3 = 6 I guess wultram is not goin anywhere even with Vaards help.
Wultram tries to move across the water but his armor proves too cumbersome or perhaps concentrating on casting a spell at the same time was too difficult, all the same the mage more or less stays where he is. He does however manage to shoot out a black ray towards the nearer of the predators.
Ray of Exhaustion ranged touch attack: 1d20 + 4 ⇒ (10) + 4 = 14
Targeting #1 Fort save 21 or exhausted, if succeeded then fatigued. Duration 7mins.

Aubrey the Demented/Malformed |

The fish facing Ashshar snaps at the tasty morsels in front of it.
Fish 2 attacks randomly.
On a 1 it attacks Ashshar, on a 2 it attacks Rehil 1d2 ⇒ 2
Attack on Rehil
Bite 1d20 + 13 ⇒ (10) + 13 = 23 to hit, damage 2d6 + 15 ⇒ (3, 3) + 15 = 21. On a successful hit, it will initiate a grab: 1d20 + 21 ⇒ (4) + 21 = 25 v Rehil's CMD. If that is successful, Rehil is now grappled.
Numerous potential meals present themselves to the other fish.
Fish 1 attacks randomly.
On a 1 it attacks Vaard, on a 2 Cole, on a 3 Skellie, on a 4 Tal, on a 5 Nalverren 1d5 ⇒ 2
Attack on Cole
Bite 1d20 + 13 ⇒ (9) + 13 = 22 to hit, damage 2d6 + 15 ⇒ (3, 3) + 15 = 21. On a successful hit, it will initiate a grab: 1d20 + 21 ⇒ (3) + 21 = 24 v Cole's CMD. If that is successful, Cole is now grappled.
Tal.

Tal'Va'Nocht |

Remember, we are all tied together by ropes, 20 ft apart, so you can't be more than 20 ft from 2 other people. Tal would be in the middle, as healer.
Tal, M10, 10ft down (centered myself around everyone)
Ash* 57/57, Cole* 64/85, Nalvarren 52/52, Rehil 33/54, Tal 51/51, Vaard* 62/62, Wultraam 40/40
Cole heals 5 HP, Tal takes 5HP.
Ash* 57/57, Cole* 64/85, Nalvarren 52/52, Rehil 33/54, Tal 46/51, Vaard* 62/62, Wultraam 40/40
Tal swims to M12/15" using the granted move action.
Tal uses his standard action to Channel, excluding the fish.
Channel: 2d6 ⇒ (6, 2) = 8
Ash* 57/57, Cole* 68/85, Nalvarren 52/52, Rehil 41/54, Tal 51/51, Vaard* 62/62, Wultraam 40/40

Rehil Ecraish |

Grappled. Where did the fish end up? Does Ashshar get an AoO?
Edit: Aubrey, can I use Deadly Dodge? OR would it be cheating because I know it would negate the attack?
Deadly Dodge (Ex): As a swift action, you can expend one use of mythic power to gain a +4 dodge bonus to your AC until the start of your next turn. During this time, whenever a creature misses on a melee attack against you, it provokes an attack of opportunity from you. You can choose to either take this attack of opportunity or force that creature to reroll the attack and change the target to a creature of your choice that is adjacent to you and within the attacker's reach. This reroll uses the same modifiers as the initial attack roll.
That would turn the attack into a miss and I'd get an AoO.

Ashshar |

Ashshar turns his full attention to the huge fish attacking Rehil.
The lizardfolk hisses, the sound being barely perceptible underwater, before throwing a flurry of stabs and bites at it.
The tribe's hunter finish by biting himself free of the rope.
Swift Action using Mythic Champion's Sudden Attack. Roll twice, add tier and ignore Dr. Afterwards full attack with the halberd and bite, but the bite would bw directed at the rope to free himself.
Sudden Attack, Power Attack: 1d20 + 7 + 1 ⇒ (13) + 7 + 1 = 211d20 + 7 + 1 ⇒ (8) + 7 + 1 = 16
Power Attack Hunting Spear: 1d20 + 7 ⇒ (1) + 7 = 8
Power Attack Bite at the rope: 1d20 + 4 ⇒ (5) + 4 = 9
Damage, Sudden Attack: 1d10 + 12 ⇒ (10) + 12 = 22
Damage, Usual Attack: 1d10 + 12 ⇒ (6) + 12 = 18
Damage, Bite: 1d3 + 6 ⇒ (1) + 6 = 7

Tal'Va'Nocht |

Yes, the channel reached Cole. He only got 4HP from it though. If you have DR, I wasn't aware of it, how much do you have?

Cole. |

Cool. 85hp - 19 + 2 life link + 4 channel = 72/85 hp
Cole has DR 2/Adamantine from his Adamantine Body feat. :)
Constrained both by the rope around his waist and the creature now grabbing him, Cole does his best to fight back.
Rage + full attack (shortspear, shortspear, slam)
Mods: Rage, Grapple, Power Attack)
shortspear, 1: 1d20 + 12 - 2 - 2 ⇒ (14) + 12 - 2 - 2 = 22
damage: 1d6 + 6 + 4 ⇒ (2) + 6 + 4 = 12
shortspear, 2: 1d20 + 7 - 2 - 2 ⇒ (12) + 7 - 2 - 2 = 15
damage: 1d6 + 6 + 4 ⇒ (6) + 6 + 4 = 16
slam, secondary: 1d20 + 7 - 2 - 2 ⇒ (10) + 7 - 2 - 2 = 13
damage: 1d4 + 4 + 2 ⇒ (3) + 4 + 2 = 9

Tal'Va'Nocht |

Life Link isn't healing magic, it directly transfers HP. So to my understanding, Cole would receive the full 5HP and Tal would take 5HP.

Cole. |

Life Link isn't healing magic, it directly transfers HP. So to my understanding, Cole would receive the full 5HP and Tal would take 5HP.
However, spells from the healing subschool and supernatural abilities that cure hit point damage or ability damage provide only half their normal effect to a warforged.
Life Link is a Supernatural ability that heals hit points, so my understanding is that it's reduced to half effect on Cole.

Tal'Va'Nocht |

Life link doesn't heal HPs. It transfers damage. Five points of HP damage transfers from Cole to Tal. If we use your interpretation, Cole would heal 2 HP and Tal would take 5 HP, and Tal would never link to Cole, because it would be useless to link to him.