Arknights Long Spring Wastes Guide (Annihilation 9)

Embarking on the latest Annihilation mission, Long Spring Wastes, an offshoot of the Originium Dust event, can prove to be quite vexing. As with other Annihilation variants, be prepared to replay it several times a week for a full month to gather all your complimentary Orundum.

Struggling? Don’t fret. This guide provides valuable tips, Operator suggestions, and clarity on the unique challenges this stage presents!

Navigating the Sandstorm – What’s the Strategy?

If you’ve participated in the ongoing Contingency Contract seasonal event, Wild Scales, the Sandstorm mechanism is likely not new to you. Originating from the event that inspired this Annihilation mission, the Sandstorm serves as a severe debuff for Operators unlucky enough to get caught in its whirl.

The Sandstorm is relentless, reducing your Operators’ Attack stat by half, causing 100 True damage per second, and drastically extending their redeployment time if they’re retreated amidst the turbulent sandstorm.

Although weathering the storm’s damage isn’t exceedingly challenging (a solitary multi-target Medic can manage), the Attack debuff can be particularly brutal and must be averted. To achieve this, wisely utilize the Dirt Mounds, capable of shielding your Operators from the Sandstorm, regardless of the direction it originates from.

Nonetheless, Dirt Mounds aren’t invincible. They continue to take persistent damage from the Sandstorm. However, the stage’s outset provides a certain number of Reinforcement Devices, which, for a cost of 5 DP, can bolster any Mound facing them upon deployment. These reinforced Dirt Mounds instantly regain full health, acquire 400 Defense, and become immune to Sandstorm damage, making them a vital asset in your strategy. Therefore, carefully consider which tiles to deploy your Operators on, ensuring they’re safeguarded from the storm by reinforceable mounds.

Moreover, the Sandstorm’s direction can unpredictably shift during various stage moments. Remember to factor this in when determining which mounds to fortify. Initially blowing from right to left, the storm gradually alters its course, moving from top to bottom and left to right at varied intervals. However, the storm never emerges from the screen’s bottom, so no worries there.

Lastly, beware of specific enemies that become far more threatening under the Sandstorm’s influence. Namely, the Redmark Infiltrators, who gain a substantial 40% Physical and Arts dodge boost while in the Sandstorm, and the Redmark Eradicators, who can inflict enormous ranged damage on any Operator trapped in the Sandstorm, irrespective of their distance.

Unraveling the Enemy Surge in Arknights Long Spring Wastes

A standout feature of the Originium Dust event is the emergence of foes that regularly spawn or split into more adversaries upon death. This mechanic is reflected in most of the enemies in this mission, leading to a relentless flood of additional Originiutant Excrescences that don’t contribute towards the 400 enemy objective. To counteract this, focus on deploying Operators who possess the ability to consistently target multiple foes simultaneously, ensuring these nuisances are swiftly dealt with.

The following archetypes are ideally suited for this task:

  • Chain Casters
  • Splash Casters
  • Blast Casters
  • Ambusher Specialists
  • Spreadshooter Snipers
  • Artilleryman Snipers
  • Flinger Snipers

Understanding Inactive Operators – Originiutant Tumor’s Influence

The Originiutant Tumors, spawned regularly by the Mutant Giant Rock Spider α or by the Mutant Rock Spider α upon death, are perhaps the most troublesome adversaries in this entire Annihilation. On blocking these foes, an Operator’s Attack Speed is massively debuffed by 80, significantly reducing the damage output. This can quickly lead to a domino effect, allowing these dangerous enemies to reach a higher number of Operators, which may result in numerous leaks.

Ranged Operators who can dish out high, consistent damage to large enemy groups are the safest bet for quickly neutralizing these threats. Alternatively, you can protect your melee Operators from the debuff by positioning them behind others whose task is to keep the Tumors at bay, such as most Defenders. However, remember that this stage sees a high enemy flow, which could overwhelm even the most well-supported Operators. For those still wishing to fortify their lanes with melee damage, La Pluma and Blaze, capable of targeting an unlimited number of enemies or attacking from a range that keeps the Tumors at bay, come highly recommended.

Why Aren’t My Operators Attacking Certain Enemies?

When Redmark Infiltrators or Redmark Elite Infiltrators sustain damage, they instantaneously create a static Mirage at their initial hit point. While this Mirage persists, the Redmark Infiltrators become unblockable with a reduced Taunt, meaning your Operators won’t prioritize targeting them if other enemies are within range.

This proves problematic as the Mirage, being static, often falls behind enemy lines, escaping your Operators’ notice. Despite their weak nature, the Mirages can remain in the field long enough to let the Infiltrator breach your defenses.

Aside from the aforementioned archetypes, other Operators who can handle these situations effectively include Eyjafjalla with Ignition, La Pluma, and Blaze.

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