Casting Eldritch Blast:

Attack 1: 8 Damage: 8

Attack 2: 15 Damage: 7

Celia fires bolts of eldritch energy at the third griffon. While she attacks, she order's Echo silently to assist the horses with their escape. Echo nods and turns invisible, flying over to help free one of the horses.

The blast adds to the many wounds the griffon has received but it still stands its ground. Top of the round, here is a report on how the griffons look.

G1: Injured          G2: Minor Injuries          G3: Severely Injured          G4: Minor Injuries

Rianath is up.

The adrenaline rush of the battle also fights away the numbing cold of the outside. The wild feathers of the griffons blow in the cool breeze and the pitch black sky lets their eyes glow with a piercing yellow. Their mangy claws and beaks are chipped and tattered. Blood fills the snow covered ground and drips from the griffon's natural weapons, glistening in the soft glow of the moonlight. Panicked whispers fill the cavern and spill out into the open battlefield, leaving brief thoughts of paranoia to fill your mind. Through the screams and whispers lies a stillness in the air, a silence between the four strangers that didn't hesitate to jump into battle in order to protect those in their care. 

Rianath lets out a ferocious snarl, heaving his axe around for a vicious swing before flipping his grip and reversing direction for another blow, sheer determination to save as many of the horses as possible flowing through his veins.

(Rianath will swing twice -- because I forgot all about Extra Attack last round but remember this time-- at G1. Attack 1: 17 Damage: 8  Attack 2: 27 Damage: 9 )

As the griffon holds its ground and goes to launch another round of attacks, you slice once up its worse, cutting incredibly deep and covering yourself with its blood. As it falls to the ground you switch your grip and swing at the top of its spine, severing it's head and chest from the rest of its body.

The two healthier griffons (G2 and G4) grab onto two of the horse carcasses and begin their flight at half speed (40 ft) due to the weight of the horses. No one is currently close enough to them (within 5 ft) to make an AOO.  The other griffon (G3) looks to weak to fly, but that doesn't stop it from trying. It makes it about 15 ft before collapsing into the snow and spends the other 15 feet of movement limping towards where the horse ran off.

On the horses turn, the two that remain tied up will try to break free (one with adv), while the third horse continues its charge away from the group at full speed.

H1 STR check: 19          H2 STR check: 10

One horse breaks free and runs in the opposite direction of the remaining griffon.

Tikak is up.

Tikak will again try bite and kick at G3.  This one won't get away.   Some feral instinct alerts Tikak that the creature was just looking for a meal, but he knows that now it is in pain and more dangerous than before.  He decides to put it out of its misery.

He will take four attacks on the griffon, another flurry of blows.

Attack: 9 Damage: 11

Attack: 26 Damage: 10

Attack: 18 Damage: 11

Attack: 13 Damage: 9

Afterwards, he will disengage and run back to safety.  (If the creature is too far away, he will use the Step of the Wind to bonus action dash to the griffon instead of the second two attacks).

With a speed unmatched on the field, Tikak strikes the griffon with three quick blows and a sickening crunching sound puts the griffon out of its misery. (The griffon was 45 feet away so you're able to disengage back 5 ft).

Af is up.

As a quick recap, there are two griffons 40 ft in the air attempting to flee with horse carcasses, a horse that has now sprint out of sight, and another that is 40 ft away.

Seeing the other two griffins escape with our horses, making sure the griffins are within range of each other and my allies are away, the red flame burns bright and I open the cage door to my holy symbol.

I cast Fireball 25 DEX SAVE: 14

G3 DEX save: 16
G4 DEX save: 18

The smell of sulfur briefly fills the air as a large explosion surrounds the griffons. The explosion appears more as that of a dying star and the effect clears the snow and leaves off of the nearby trees. The griffons come crashing down to the ground, the horse carcasses falling with them.

Fall damage: 14

Neither griffon appears to be moving. Celia is up.

Casting Eldritch Blast:
Attack 1: 16 Damage: 6
Attack 2: 26 Damage: 10

Celia turns her attention to the remaining Griffon and launches more eldritch energy at it.

One blast connects with each griffon and you are confident that they are no longer living. Combat is now over. One horse remains tied up while the other two have both sprinted out of sight.

"Echo, help me find them," Celia says, sending him off in the direction the horses feld while turning to the remaining horse and trying to calm him down.

Make an Animal Handling check for you and a Perception check with disadvantage for Echo.

Rianath lets out a few huffs of breath, looking over the others to see if they are uninjured.

"I'll see if I can catch our runaway," he calls to them before turning and following after the tracks. He reaches up to wipe the blood away from his eyes, mostly smearing it but keeping it from dripping into his vision.

"Is everyone okay?" I ask the others as I run to Rianath. I cast Cure Wounds 5 on him.

"Let's check spot they fell. Celia, you need help with the horses?" 

(Would i get advantage on the animal handling check if i was using speak with animals?)

Celia Animal Handling: 3

Echo Perception: 6

RIP the horses we'll never see again

Rianath gives Af a grateful nod, flexing his aching muscles where his wounds are, and continues on to look for the tracks.

(I'm about to be AFK for a couple of hours, so here's a couple of rolls that might be applicable. If not, then easily ignored: Perception 24, Survival 6 )

Celia you can make another check since you're using speak with animals. Echo flies around in the cold but is unable to find the missing horse. Rianath, since it's dark out (dim to those with dark vision) go ahead and make another perception check and we'll take the lower result.

Animal Handling: 11

The horse eventually calms down, though you feel your methods need improving.