How to Beat Main Story Boss Strategies

Overcome Arknights main story bosses. This guide details strategies and recommended Operators to defeat challenging encounters like 'Withered'.

Conquering the main story bosses in Arknights requires careful planning, operator synergy, and precise deployment. This section provides detailed strategies for some of the most challenging encounters you'll face, focusing on actionable steps and recommended operator types.

Chapter 0: The First Encounter - "Withered"

Your first true boss encounter, "Withered," serves as an introduction to boss mechanics. While not overly complex, it teaches the importance of sustained damage and healing.

• Boss Abilities: Withered has moderate HP and attack, and periodically summons weaker Sarkaz Lancers. Its main threat comes from its consistent pressure and the additional units it brings.
• Recommended Operator Types:
  • Vanguard: Vigna, Fang (for early DP generation and blocking).
  • Defender: Cuora, Hoshiguma (for holding the line against Withered and Lancers).
  • Medic: Hibiscus, Ansel (for consistent healing on your main tank).
  • Sniper: Kroos, Jessica (for ranged damage against Withered and clearing Lancers).
  • Caster: Amiya, Lava (for AoE damage against groups of Lancers if they overwhelm your Snipers).
• Strategy:
  1. Early DP Generation: Deploy a Vanguard (e.g., Vigna) on a high-ground tile or a ground tile that can block early enemies to generate DP quickly.
  2. Establish a Defensive Line: Once you have enough DP, deploy a strong Defender (e.g., Cuora) to block Withered's path. Position a Medic (e.g., Hibiscus) directly behind the Defender to keep them healthy.
  3. Ranged DPS: Place Snipers (e.g., Kroos, Jessica) on high-ground tiles to target Withered and any incoming Lancers. Prioritize Withered when it's within range.
  4. Lancer Management: If Lancers start to accumulate, use AoE Casters (e.g., Amiya, Lava) to clear them out. Alternatively, deploy another Sniper or a Fast-Redeploy Operator like Projekt Red to burst down problematic Lancers.
  5. Sustained Damage: Focus all available damage on Withered. Its HP pool isn't immense, but you need to out-damage its healing (if any) and the pressure from its summoned units.
• Key Item/Operator: A well-leveled Cuora or Hoshiguma can significantly simplify this fight due to their high defense and HP, allowing your Medics to keep them alive through Withered's attacks.

Chapter 3: Darknights Memoir - "Patriot" (First Encounter)

Patriot is a significant difficulty spike, demanding a more refined understanding of operator roles and skill timing. This initial encounter introduces his devastating attacks and resilient nature.

• Boss Abilities: Patriot has extremely high HP and defense, and his attacks deal massive damage. He also possesses a unique ability to ignore a certain percentage of incoming damage, making burst damage less effective. He will also periodically gain a shield that needs to be broken.
• Recommended Operator Types:
  • Arts DPS: Ejyafjalla, Ifrit, Amiya (essential for bypassing Patriot's high physical defense).
  • Healing Defender/Defender: Saria, Hoshiguma, Nian (for tanking and potentially healing allies).
  • Medic: Shining, Nightingale, Ptilopsis (high-tier Medics are crucial for keeping tanks alive).
  • Support/Debuffer: Pramanix, Shamare (to reduce Patriot's defense or attack).
  • Slow/Stun: Angelina, Istina (to control Patriot's movement and give your operators more time).
• Strategy:
  1. Arts Damage is Key: Patriot's physical defense is incredibly high. Prioritize deploying strong Arts damage dealers like Ejyafjalla (S2 or S3) or Ifrit (positioning is vital for her S2/S3). Amiya (S2) is also a strong choice for F2P players.
  2. Robust Tanking: You'll need a highly-invested Defender, ideally a Healing Defender like Saria (S1 or S2) or a high-DEF Defender like Hoshiguma. Position them to take the brunt of Patriot's attacks.
  3. Overwhelming Healing: Deploy at least two strong Medics, preferably one single-target (e.g., Shining) and one AoE (e.g., Ptilopsis or Nightingale), to ensure your tank survives Patriot's onslaught. Use their skills proactively.
  4. Defense Shredding: If you have operators like Pramanix (S2) or Shamare (S2), deploy them to reduce Patriot's defense. This significantly boosts your Arts damage output.
  5. Skill Timing: Save powerful damage skills for when Patriot's shield is down or when he is about to move into a critical position. Coordinate your Arts DPS skills with defense debuffs for maximum impact.
  6. Crowd Control (Optional but Helpful): Operators with slow or stun abilities (e.g., Angelina's S2, Istina's S2) can buy precious seconds, allowing your operators to deal more damage or for skills to recharge.
• Key Item/Operator: Ejyafjalla with her S2 or S3 is often considered the MVP for Patriot fights due to her incredible Arts damage output. If unavailable, multiple strong Arts Casters are a must. A well-placed Ifrit can also melt Patriot if the map layout allows for her straight-line attacks.

Chapter 6: Partial Annihilation - "FrostNova" (First Encounter)

FrostNova introduces unique mechanics centered around freezing and area denial. Her abilities can quickly incapacitate your operators if not managed correctly.

• Boss Abilities: FrostNova deals Arts damage and has two primary mechanics:
  • Ice Crystal Summons: She periodically summons Ice Crystals that deal Arts damage in an AoE and apply a "Cold" status, which can lead to "Freeze."
  • Freezing Aura: She has an aura that applies Cold to operators within range.
  • Teleportation: She teleports to different locations on the map, often targeting vulnerable operators or objectives.
• Recommended Operator Types:
  • Arts Guards: Surtr, Blaze (for high damage and survivability against her Arts attacks).
  • Healers (especially AoE): Ptilopsis, Nightingale (Nightingale's S2/S3 provides Arts resistance, which is invaluable).
  • Ranged Arts DPS: Ejyafjalla, Ifrit, Ceobe (to hit her from a distance and bypass her defense).
  • Fast-Redeploy: Projekt Red, Gravel (for quickly dealing with Ice Crystals or blocking FrostNova's path after teleporting).
  • Support/Buffer: Warfarin, Sora (to boost your damage output).
• Strategy:
  1. Arts Resistance is Crucial: FrostNova's damage is primarily Arts-based. Operators with innate Arts resistance or Medics like Nightingale (S2/S3) are highly recommended to mitigate damage and prevent freezing.
  2. Prioritize Ice Crystals: When Ice Crystals appear, they must be destroyed quickly. Their AoE Arts damage and Cold application can quickly overwhelm your operators. Use Fast-Redeploy operators or strong ranged DPS to eliminate them.
  3. High-Ground Advantage: use high-ground tiles for your ranged Arts DPS and Medics. This keeps them out of FrostNova's direct attack range and allows them to target her effectively.
  4. Prepare for Teleports: FrostNova will teleport. Anticipate her next position and have operators ready to redeploy or activate skills. Sometimes she targets your objective, so ensure you have a strong blocker or damage dealer ready at those points.
  5. Burst Damage Windows: FrostNova can be quite tanky. Save your powerful burst damage skills (e.g., Surtr's S3, Ejyafjalla's S3) for when she is stationary and vulnerable, or when she's about to reach a critical path.
  6. Strategic Blocking: While not a traditional tank-and-spank, having a strong Arts Guard or Defender to briefly block FrostNova after a teleport can buy time for your DPS to activate skills or for healers to catch up.
• Key Item/Operator: Nightingale is a game-changer for this fight due to her Arts resistance buff and strong AoE healing, significantly reducing the threat of FrostNova's freezing mechanics. Surtr (S3) can also deal immense damage to FrostNova during her stationary phases.