R1 took 19 damage from Ura's arrow, but continues standing. As Ura moves, he fails to hide again behind the hedges.

R1 returns the favor and targetes Ura, with the same attack that his robed counterpart (R2) attempted against Ander. R1 casts acid arrow 23 Damage: 8

The acid splashes across Ura and the hedges around her, burning the elf.

"Argh!" Ura hisses, doing her best to pat out the acid before it can damage her clothing too much.  "That's it!  That guy's dead meat!"

Uthal steps out from behind his tree (1 space down, two left) to line himself up with the archer. Seeing a zombie on the way he calls down fire from Selune on it. "Brene." sacred flame He then says a small prayer to Selune and waves his can. A spectral hammer, even larger than his own, appears above Viggo and moves to squish him flat. spiritual weapon

Sacred Flame: Dexterity Save DC12 or takes 1 damage

Hammer hit Viggo: Attack: 21 Damage: 5

He then retreats back to his original position behind the tree.

 Z2: 10 Z2 takes radiant damage, just as the magical hammer, Uthal summoned, comes crashing down and damaging Viggo.

Ander moves toward the closing in zombie (Z3). Southwest 2 grid spaces. And slashes at the rotting corpse with his sword. 8 Damage: 10

Another of the zombies (Z1) moves towards Ander, and attacks with his bony fist. 5 Damage: 2

From behind the hedges, Anearis notices that Ander is starting to get surrounded by foes. Coming out of his hiding place, the elf dashes over to the the first robed figure and begins his assault.

Move 40 feet to the tile Northeast of R1

Action:

Unarmed Attack:13 Damage: 6

Bonus action:

Unarmed Attack:20 Damage: 5

Rushing to one of the robed hostiles (R1), Anearis lands a hit that knocks the target unconscious. He made another attack, but it missed, possibly due to the target's movement as gravity forces him to drop to the ground like a bag of rocks.

Likely due to the successful onslaught of hits, and the loss of one of his compatriots, Viggo began making a retreat.

Viggo moved 11 spaces west, and turns to fire at the nearest target, Anearis. Attack: 15 Damage: 3  Bonus Attack: 15 Damage: 8

Not waiting to see if it even hits, Viggo concludes his movements, by dropping down, behind the wall and out of the garden.

Z2 moves 3 north and 1 west, stopping to claw at Uthal. Slam: 17 Damage: 3

Still standing his ground, Nik attempts to assist, throwing one of his axes towards the zombie that went for Uthal (Z2). Attack: 21 Damage: 3

Z3 continues his assault on Ander. Slam: 10 Damage: 4

Bonus Damage for crit hit on Uthal 2

Stepping out of cover once again, Viilgahan winds up another Fire Bolt and tosses it towards one of the shambling creatures (Z3) assailing the human by the fountain.

Bolt To-Hit: 13

Damage: 4

The firebolt misses Z3.

R2 makes a show of theatrics with his hands, black whisps, juggling between his fingers before he then points them towards Uthal. In the space just south of Uthal, a ghastly skeletal figure materializes.

Ura cruses under her breath as the archer makes his escape off the field.  Seeing that Anaeris had dropped the first robed figure, she watches in horror as the second robed figure turns out to also be a mage.  "Not my day," she groans under her breath, identifying him as the biggest threat - and the hardest figure to reach.  Leaping up, she puts her head down and runs, full speed, as far as she can, skidding to a stop near Uthal.  Her bow is already in hand, and from her new position, she takes aim at the second robed figure and tries to turn him into a pincushion.  After firing off her bow, she keeps moving east, taking cover behind one of the trees.

Bonus Action: Dash
Attack: 7
Damage: 7

Uthal holds his position, turning the fires from the heavens on the spectral shape. sacred flame At the same time he brings the spectral hammer closer, dropping it down on the caster's head. 

A: Sacred Flame: DC12 Dex or 5 damage 

BA: Spiritual Weapon Attack: 22 Damage: 4

Undead Spirit: 12 

By the skin of it’s teeth, not that it had any skin, the materialize skeleton escapes Uthal’s sacred flame. However, not so lucky when facing his materialized hammer.

Concentrating attacks on one of the two zombies flanking Ander, the knight slashes at Z3. 23 Damage: 11

Z1 attacks Ander in turn. Slam: 21 Damage: 2

undead Spirit Initiative: 11

Ander bonus damage: 11

Z3: 16

Z3 crumpled under the weight of Ander’s blade, as it severed the flesh and bones into pieces. Z3 folded in place, as the party had seen so many of these undead creatures do before, never to unnaturally rise again.

With one of the robed figure neutralized, Anearis turned his attention back to the rest of the battlefield. He circled around the center fountain and began attacking the zombie already assaulting Ander.

(Move 3 down and 2 right)

Unarmed Attack: 13 Damage: 7

Bonus action:

Unarmed Attack: 18 Damage: 7

The zombie attacking Uthal (Z2), unphased by the sudden appearance of the undead spirit, (being that he's a zombie and likely very little would phase him), continued attacking Uthal.

Zombie Slam: 13 Damage: 7

Nik, having already embedded one throwing axe into Z2, intended to do the same again. Throwing axe: 18 Damage: 9

A black cloaked figure moves into the garden, from the archway to the south. The figure stayed at the corner of the hedges, just north of the archway, and southeast of the fountain.

The spectral skeleton, who had yet to do anything since being formed, lunged a clawed bony hand at Uthal 23 Damage: 12

 Z2: 5

Uthal Wisdom Saving Throw: 8

Z2 falls to the ground, dead...again. Uthal is frightened (disadvantage on combat and ability, while in line of sight of source (undead spirit))

"Mind yourself master dwarf." Turning, Viilgahan moved down the line, hugging the eastern wall until he emerged just across, then past, the goliath Uthal. He lined himself up with the apparition and attempted to fling a mote of magic fire at its form.

Fire Bolt To Hit: 12

Damage: 1

(South East 1, South 4)

Ura, seeing the second zombie go down, darts out from the behind the tree and rushes down the path.  She stops temporarily behind another tree closer to her original target, the robed figure, hoping that her speed and the confusion of battle will give her the opportunity to shake the mage's attention off. Then she ducks out from behind the tree and aims at him again.

Move: SE 1, S 3, SW 1
Bonus action: hide (stealth): 25

Attack R2: 19
Damage: 6
(Hidden?  Sneak attack? 8)

R2, having been shot with an arrow and seeing Ura appear so close, retreated from his position, 6 grid spaces west. Once there, R2 turns and again performs a spell, summoning forth another undead spirit. 
In place of where R2 started his turn, another spectral skeleton began to take form.

Uthal feels the fear growing inside him and calls out to Selune. He slams his fist into his shield, making a terrifying rattle and psyching himself back up for the fight. As he does the glow of twilight floods outwards from the symbol around his neck, creating a soothing sphere of light 30 feet across with him at the centre. He basks in the glow of the light and his fear fades away. (Channel Divinity: Twilight Sanctuary) He then waves his hand and the spectral hammer comes crashing down on the spirit that dared to try and scare him away. 

Attack: 22 Damage: 7

Uthal second combat roll: 14 ((Disadvantage due to frightened status. Twilight Sanctuary would remove at end of turn, following combat.