Perpetual Mechanical Array

A strange, alien machine.
They say that it is a war machine left behind by a nation that has already been destroyed. Composed of several different parts, it can adapt to its combat environment and employ a variety of attacks. This machine, comprised of cubic shapes, is on some level very much like the elemental hypostases.

Adventurer Handbook

The Perpetual Mechanical Array is a Normal Boss challenge found in Narukami Island, Inazuma. In order to access the boss, the player can enter through a portal on Jinren Island. A faster route is unlocked through a Teleport Waypoint next to the boss; this requires completion of the Araumi section of Cleansing Defilement.

Rewards

Claiming the Trounce Blossom after defeating the boss offers the following exclusive Character Ascension Material:

1-3 Perpetual Heart

The blossom also offers the following Artifact Sets:

2-3★ Set Lucky Dog

3-4★ Set Berserker

3-4★ Set The Exile

3-4★ Set Prayers to Springtime

4-5★ Set Gladiator's Finale

4-5★ Set Wanderer's Troupe

The cost of claiming the Trounce Blossom is Original Resin ×40.

Rewards and difficulty increase with Adventure Rank (AR).

At all World Levels, Perpetual Mechanical Array rewards Adventure EXP ×200.

World Level	Boss Level				Ascension Gems		Artifacts
World Level	Boss Level				Ascension Gems
0	36	3,450	138	30	Prithiva Topaz Sliver Shivada Jade Sliver	2–3	1–2	2–3	—	—
1	37	3,450	138	30	Prithiva Topaz Sliver Shivada Jade Sliver	2–3	1–2	2–3	—	—
2	41	3,650	144	30	Previous Rewards + Prithiva Topaz Fragment Shivada Jade Fragment	2–3	1–2	2–3	—	—
3	50	3,850	155	35		2–4	—	3–4	0–1	—
4	62	4,125	166	35	Previous Rewards + Prithiva Topaz Chunk Shivada Jade Chunk	2–4	—	3–4	0–1	—
5	72	4,450	178	40	Previous Rewards + Prithiva Topaz Chunk Shivada Jade Chunk	3–5	—	2–3	1–2	0–1
6	83	4,725	189	40	Previous Rewards + Prithiva Topaz Gemstone Shivada Jade Gemstone	3–5	—	2–3	1–2	0–1
7	91	5,200	200	45		3–5	—	2–3	1–2	0–1
8	93	6,000	200	45		3–5	—	2–3	1–2	1

Artifact drop ranges are primarily sourced from the Genshin Data Gathering team.

Stats

Resistances
State
Normal	70%	10%	10%	10%	10%	10%	10%
Paralyzed	20%	-40%	-40%	-40%	-40%	-40%	-40%

Level Scaling
Level	HP	ATK	DEF
1	1,175	152	505
5	2,646	255	525
10	4,627	407	550
15	8,340	643	575
20	13,618	1,004	600
25	19,062	1,371	625
30	25,360	1,639	650
35	34,043	1,974	675
40	45,534	2,450	700
45	61,171	3,049	725
50	83,897	3,779	750
55	108,862	4,477	775
60	141,743	5,322	800
65	186,350	6,284	825
70	234,434	7,346	850
75	293,344	8,376	875
80	378,186	9,452	900
85	483,170	10,279	925
90	593,605	11,419	950
95	726,859	13,099	975
100	887,360	14,773	1,000

Note that HP and ATK values may change in Co-Op, some Quests, and certain Domains. The change usually involves multiplying some of the values by a constant scale factor.

Abilities and Attacks

Names are unofficial.

Rocket Blast: Transforms into a rocket and targets the player's position before slamming down, dealing 110% ATK as AoE Physical DMG.
Orbital Strike: Targets your current position with a reticle that focuses before striking down, dealing 120% ATK as AoE Physical DMG.
Cube Roll: Only uses this move at long ranges. Transforms into a Cube and rolls repeatedly with high speed. When it catches up to the player, releases a shockwave with the final roll, dealing 90% ATK as AoE Physical DMG.
Sword Slash: Only uses this move at Melee ranges. Transforms into a giant sword and slashes Right to Left, dealing 90% ATK as Physical DMG.
Blade Spin: Only uses this move at Melee ranges. Transforms into a giant spinning blade and does a zig-zag pattern before slashing Left to Right, dealing 70% ATK as Physical DMG.
Energy Cannon: Charges up for a short time before firing a beam of pure energy that deals 40% ATK as Physical DoT to those touching the beam. The beam follows the player.
Defensive Mode: Assumes a defensive stance and launches four cubes that transform into Ruin Sentinels. Only one highlighted ruin sentinel can be damaged, and defeating it will paralyze the Perpetual Mechanical Array and lower its base resistances by 50%. If the highlighted ruin sentinel is not defeated after a long period of time, the Perpetual Mechanical Array will exit Defensive Mode. Defensive Mode always triggers when the boss's HP reaches 35% before its first timed Defensive Mode activation. The boss cannot be damaged past 30% HP until Defensive Mode has been triggered at least once.

Preview

Ability Logic

See also: Cooldown § Enemy Cooldowns

An ability will only be used if they meet all of the following conditions:
- The ability is not on cooldown
- The target is within the range required by the ability
- The ability has the highest priority out of all that meet the previous 2 conditions
  - A lower priority number indicates a higher priority.
  - If multiple abilities share the highest priority, one will be chosen at random.
Certain abilities with extra trigger conditions may defy regular ability logic.

Ability	Range Req. (m)	Priority	CD (s)	Initial CD (s)	Shared CD (s)	Action Interval (s)
Rocket Blast	0–99	4	30–35	5	10	2
Combo 1 (Sword Slash + Rocket Blast)	0–10	4	30–35	10
Combo 2 (Blade Spin + Sword Slash + Rocket Blast)	0–7.5	4	15–25	5
Orbital Strike	0–99	4	15–22.5	5	-
Cube Roll	20–40	3	15–22.5	5	-
Energy Cannon	5–15	4	15–22.5	5	-
Enter Defensive Mode	—	1	—	40	-
Exit Defensive Mode	—	1	150	150	-

Strategy

The boss uses a wide array of attacks, most of which are fairly easy to dodge. As an Ruin Machine enemy, the boss is highly resistant towards Physical DMG and can be more efficiently fought with Elemental DMG.

While performing its Energy Cannon attack, the boss is unable to turn and only attacks in a forward arc. Running past/behind it will interrupt its attack.

As the fight progresses, the boss will eventually assume Defensive Mode, summoning four Ruin Sentinels - one each of a Scout, Defender, Destroyer and Cruiser. One of these four sentinels will be highlighted with runes and the game will inform that this Ruin unit will need to be disabled to end the boss' Defensive Mode. The boss does not attack in this state.

The Ruin Sentinels share the same level as the boss and apart from the glowing runes, the targeted Ruin unit shows its level and health bar - the others do not. There are no other differences between the boss' Ruin Sentinels and those found elsewhere. Once the targeted Ruin Sentinel loses all of its health, the boss breaks out of Defensive Mode and will be paralyzed for 20 seconds alongside all the Ruin Sentinels. During this time, the boss's base resistances to all DMG is lowered by 50%, so dump as much damage as possible. When the boss recovers from its dazed state, it will become briefly invulnerable for a second before pulling the sentinel cubes back in.

The attack pattern resets and remains this way until the boss is defeated.

Achievements

4 Achievements match the category selection:

Achievement	Category	Description
The Battle of Narukami Island	Challenger: Series IV	Defeat the Perpetual Mechanical Array in its weakened state.	5
Core Breakthrough	Wonders of the World	Defeat a Perpetual Mechanical Array after paralyzing all 4 types of its Ruin Sentinels.	10
Could All Uninvolved Machinery Please Leave Immediately?	Wonders of the World	Defeat the Perpetual Mechanical Array without defeating any of its Ruin Sentinels.	10
The Not-So-Perpetual Mechanical Array	Meetings in Outrealm: Series II	Defeat a Perpetual Mechanical Array in Co-Op Mode.	10

Trivia

According to the Perpetual Heart's description, it is theorized that the Perpetual Mechanical Array was once 4 small machines that discarded their biomimesis and came together of their own accord.
- It would appear that the 4 machines that came together had advanced cores and formed a hive mind.
Perpetual Mechanical Arrays, along with Maguu Kenki, are the only normal bosses that deal Physical DMG.
The Perpetual Mechanical Array drops elemental gems despite not incorporating Geo and Cryo in any of its attacks, making it the only Normal Boss that drops an elemental gem that it has no affinity with.

Gallery

Video Guides

How to Easily Beat the Perpetual Mechanical Array

Machine Battlefront

The water near Jinren Island is undulating violently, while an unpredictable automaton is hidden in the ruins underneath...
Destroy the Perpetual Mechanical Array at the bottom of the sea and pre-empt the attack of the Ruin machines!

Other Languages

Language	Official Name	Literal Meaning
English	Perpetual Mechanical Array	—
Chinese (Simplified)	恒常机关阵列 Héngcháng Jīguānzhènliè	Perpetual Mechanical Array
Chinese (Traditional)	恒常機關陣列 Héngcháng Jīguānzhènliè	Perpetual Mechanical Array
Japanese	恒こう常じょうから絡くり繰陣じん形けい Koujou Karakuri Jinkei	Perpetual Mechanical Array
Korean	영구 장치 진영 Yeonggu Jangchi Jinyeong	Perpetual Mechanical Array
Spanish	Maquinaria Eterna	Eternal Machinery
French	Matrice mécanique perpétuelle	Perpetual Mechanical Matrix
Russian	Бесконечный механический массив Beskonechnyy mekhanicheskiy massiv
Thai	Perpetual Mechanical Array	—
Vietnamese	Mô Hình Động Cơ Vĩnh Cửu	Eternal Mechanical Paradigm
German	Anordnung immerwährender Vorrichtungen	Array of Perpetual Mechanism
Indonesian	Perpetual Mechanical Array	—
Portuguese	Formação Mecânica Perpétua	Perpetual Mechanical Formation

Change History

Released in Version 2.0

[Edit History]

Version 2.1

Fixes an issue whereby the Perpetual Mechanical Array may get blocked by Geo Constructs when splitting and is unable to return to the center of the arena normally.

Version 2.0

Perpetual Mechanical Array was released.