Priton will swim to the stone and attempt to break the stone 

(Strength Check: 15 )

Using his holy hammer he wraps his arm around the stone, holding onto the grip and head of the hammer and begins to squeeze and crush the stone.  The glyphs flare red brightly into Priton’s eyes and a sharp pain begins to tear into his skin.  Like needles crawling into your arms, legs, body.  Any point of Priton that is touching the stone burns in pain.  

Priton suffers 6 necrotic damage as he begins to feel the stone crack and crumble.  The stone is weakened but a tether can still be seen connecting it to the Giant.

Taking the damage, failing his second death saving throw. Then a successful third:  Tyr Wakes up seeing nothing but white light.  Floating in a sea of black.  Unable to move slowly sinking as the thick syrupy water fills his lungs sinking to the depths of the abyss.  His vision begins to fade.  

Suddenly a giant hand pierced through the water.  It’s fingers wrap around Tyr’s Entire body engulfed by the palm, the hand lifts the almost lifeless body out of the water.  Everything goes white again.  Then pure blackness.  Tyr comes back to consciousness, still inside the Giant.  

Tyr’s initiative 

Tyr takes a deep breath, coughing from the noxious gas, as he comes back from the pure blackness. The panic beginning to set in that this may be his end. He reaches for his daggers and slashes up.

[OOC]

Attack 1: 12 Damage: 6

Attack 2: 25 Damage: 6

Clutching to his daggers with renewed vigor Tyr struggles against the muscular sack that is the giant’s  stomach.  But Tyr seems too fatigued to muster an effective attack.

Ragnir’s Initiative.

Ragnir will jump into the water going after Priton, and if he can reach he will also try to smash the stone.

Movement: full movement to get to the stone. (25ft [halved cause of swim speed?])

Action: Attack: (if ragnir can reach the stone) 11 (unarmed/bludgeoning)

Damage: (if it hits) 4 (bludgeoning damage)

Bonus Action: no bonus action this turn.

Ragnir begins to smash the rock, it cracks under the blow and glows red.  Burning off 2 damage to Ragnir.  

Hermenor’s  initiative 

Hermenor will rinse and repeat, focusing on defense. Also, he takes a look at the giant, trying to see how hurt he is (If needed, here's a medicine roll: 14).

-> Underwater Punch (unarmed strike) vs. Giant: Attack: 20 Damage: 7 magical bludgeoning.

Bonus action: last Ki point to use Patient Defense (dodge).

Getting aggravated at this point at the elusive Hermenor, the Giant attempts to grab a hold of the tiny monk.

Giant Athletics: 15

Hermenor Acrobatics: 23

using his second attack to attempt again.

Giant Athletics: 20

Hermenor Acrobatics: 18

The Giant finally clutches onto Hermeno as one hand completely wraps around the thigh with a vice like grip.  Hermenor is now grappled.  

Pritons initiative

Hermenor can tell that the Giant has taken a beating and definitely doesn’t feel in control of the situation, not being able to hit you is frustrating.  (How many more ki points you got). It looks rough, but doesn’t seem to be on the edge of death or anything.

Priton will try again with command and say spit to the giant (Wisdom save dc 12) and BA healing word himself (Sorry tyr cant heal you while your in the mouth) Heal Amount: 1

Wisdom saving throw: 14

The Giant is still able to withhold from Priton’s command and shrugs off the magical effect.

Tyr takes 8 acid damage at the top of his turn and passes back out.  

Ragnir’s initiative.

(i didn't see the notification, is it too late for me to do my own turn?)

(That’s fine.)

Ragnir will continue to pummel the stone in hopes of breaking it.

Movement: no movement this turn.

Action: Attack: 20 (unarmed/bludgeoning)

Damage: (if it hits) 4 (bludgeoning damage)

Bonus Action: no bonus action this turn.

With that the rocks crumpled in.  Dust begins to cloud in the water.  The light brightens and lets out a burst of energy.  Pushing both Priton and Ragnir 15 feet back.  Suffering 5 necrotic damage.  

The tether cracks like a whip severing from the Giant.

Hermenor’s Initiative

Has the giant’s behavior or demeanor changed in any way? If not, Hermenor will continue attacking:

Action -> Underwater Punch (unarmed strike) vs. Giant: Attack: 25 Damage: 9 magical bludgeoning.

Bonus action -> Underwater Punch (unarmed strike) vs. Giant: Attack: 23 Damage: 7 magical bludgeoning.

OOC: if the answer to the question above is YES, let me know and I can edit this post.

Edit: Noticing the change in demeanor in the giant's intent, Hermenor also relaxes and swims up to his mouth, hopping to grab Tyr and swim out of the water with his feline companion. 

The Giant shakes his head releasing some bubbles underwater.  The furrowed brow relaxes, he also releases his grasp of you after the tether is cut.