TL;DR:
- The Perpetual Mechanical Array is a Normal Boss located in Araumi, Narukami Island.
- It has no elemental weakness but a high 70% Physical RES.
- Reducing its HP below 30% triggers a Defensive Mode with four Ruin Sentinels.
- Only the marked Ruin Sentinel can be damaged during this phase.
- Defeating the marked unit paralyzes the boss and drops its resistances by 50%.
The Perpetual Mechanical Array is one of Inazuma’s world bosses, and its Defensive Mode phase catches a lot of players off guard the first time. This guide covers its location, attack patterns, and the fastest way to bring it down.
Where Is The Perpetual Mechanical Array Located?
The Perpetual Mechanical Array is located in Araumi, north of Narukami Island in Inazuma. To reach it, sail toward Jinren Island using a Waverider and look for an Electrogranum on the smaller island nearby. Interacting with it launches players through a portal directly into the boss arena. Once the Araumi section of the Cleansing Defilement World Quest is completed, a Teleport Waypoint unlocks right next to the boss for faster access afterward.
What Element Does The Perpetual Mechanical Array Use?
This boss deals Physical DMG and has no elemental weakness or resistance advantage to exploit. However, it carries a high 70% Physical RES, so bringing an elemental damage dealer or reaction-based team is far more effective than relying on a Physical DPS.
What Attacks Does The Perpetual Mechanical Array Use?
The boss has several telegraphed attacks that are easy to dodge once recognized:
- Rocket Slam: The boss transforms into a rocket, launches into the air, and crashes down on a red-marked area. Dash away once it’s airborne.
- Spinning Top: The boss spins rapidly, damaging anything caught in its path. Dash out of range before it reaches you.
- Laser Beam: A long-ranged laser follows the targeted character. The beam moves slowly enough that dashing isn’t always necessary, but staying alert avoids chip damage.
- Orbital Strike: A marker locks onto a character before a laser drops directly onto that spot. Dash out of the marked area as soon as it appears.
- Blade Attack: A fast-moving strike that can remove a large chunk of HP if not dodged in time. Watch for the startup animation and react quickly.
How To Beat The Perpetual Mechanical Array’s Defensive Mode
Once the boss’s HP drops below roughly 30%, or if the fight drags on too long, it enters Defensive Mode and becomes immune to damage. In this state, it summons four Ruin Sentinels: a Scout, Defender, Destroyer, and Cruiser. The boss itself stops attacking during this phase.
Only one of the four Ruin Sentinels is marked with glowing runes, and this is the only one that can be damaged. Defeating the marked unit ends Defensive Mode, paralyzing the boss and lowering its resistance to all damage types by 50% for a short window. This is the best time to dump every available Elemental Skill, Burst, and combo to finish the fight quickly.
If the boss isn’t defeated during this vulnerable window, it will call the Ruin Sentinels back and re-enter Defensive Mode. Since the fight resets rather than ending, prioritizing burst damage during the paralysis phase is the fastest way to avoid repeating the cycle.
Best Team For The Perpetual Mechanical Array
Since this boss has no elemental weakness, almost any balanced team works well against it. Ranged DPS characters like Ganyu, Klee, and Ningguang can deal consistent damage from a safe distance, while close-range attackers such as Hu Tao, Ayaka, Keqing, and Eula perform well alongside a reliable healer like Bennett, Jean, or Qiqi. Bringing a strong AoE Elemental Skill or Burst also helps when grouping and clearing the four Ruin Sentinels during Defensive Mode.
What Does The Perpetual Mechanical Array Drop?
Defeating this boss rewards the Perpetual Heart, a key ascension material used to level up several Inazuma characters, including Kamisato Ayaka. Farming this boss regularly is necessary for anyone building characters who require this specific material.
FAQs
Does the Perpetual Mechanical Array have an elemental weakness?
No. This boss has no elemental weakness or strength, but it carries a high 70% Physical RES.
How do I damage the Perpetual Mechanical Array during Defensive Mode?
Only the Ruin Sentinel marked with glowing runes can be damaged. The other three summoned units cannot be defeated during this phase.
What happens if I don’t defeat the boss during its paralysis window?
The boss will call the Ruin Sentinels back and re-enter Defensive Mode, resetting the vulnerable phase.
What material does the Perpetual Mechanical Array drop?
It drops the Perpetual Heart, an ascension material used for several Inazuma characters, including Kamisato Ayaka.
Related Genshin Impact Guides
Building a team for boss farming? Check out our comparison of Kagura’s Verity versus Primordial Jade Cutter, or browse our full Genshin Impact guides hub.
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