Umbral Monument: Bolts and Shadows - Agony Mode Guide for Arknights: Endfield. It covers the best teams, how to defeat, key strategies, tips, recommended characters, and rewards.
Best Team for Bolts and Shadows (Agony Mode)
Laevatain Team Comp
| Main DPS | Heat Infliction | Recover SP | Healer |
  Laevatain |  Wulfgard |  Akekuri |  Ardelia |
This Heat-based team revolves around Laevatain. Her powerful AoE Ultimate can quickly wipe out the Sting α mobs summoned by the boss, making her one of the best carries for Bolts and Shadows.
Bolts and Shadows Strategy and Tips
Include a Healer in Your Team
| Recommended Healers | ||
| Ardelia |  Ember |  Snowshine |
Enemy attacks are relentless in the Bolts and Shadow Agony mode, and you cannot use recovery items. You must bring a dedicated healer like Ardelia or Ember to sustain the party through the heavy damage.
Heavy Sting Has Enhanced Moves
The boss, Heavy Sting, recovers from Stagger much faster and boasts an enhanced moveset compared to the normal version. It also summons significantly more rocks, so watch carefully and dodge them.
| Tip! | You can often dodge successfully by keeping your distance from Heavy Sting. |
|---|
Prioritize Defeating Sting α
Once Heavy Sting drops below 60% HP, it deploys a yellow barrier and becomes periodically invincible. The only way to break this shield is by eliminating the summoned Sting α mobs, so focus them down immediately.
Clear Mobs with AoE or Grouping
| Recommended Characters | Strategy |
| Laevatain | - Main DPS with massive AoE damage. - Clears mobs Sting α. - Can deal high damage even against the boss |
 Gilberta | - Groups enemies together. - Allows the attacker's attacks to hit all of them - Save Ultimate for Stagger windows. |
 Lifeng | - Physical DPS with high burst. - Ultimate gathers enemies for massive damage. - Save his Ultimate for mob spawns. |
Sting α have high Defense, and enemy attacks are more intense while they are active, so you need to defeat them quickly. Bring heavy AoE hitters like Laevatain, or crowd-control units like Gilberta and Lifeng to group them up for the kill.
Best Characters for Bolts and Shadows
| Character | Role / Highlights |
| Laevatain | [Role]: Main DPS [Highlights] - Massive AoE damage output. - Instantly clears Sting α mobs. - Absolute priority pick if you have her. |
| Gilberta | [Role]: Crowd Control / Support [Highlights] - Groups enemies and inflict Arts Susceptibility. - Battle Skill is excellent for managing Sting α. - Save Ultimate for Boss Stagger windows. |
| Ardelia | [Role]: Healer [Highlights] - Consistent HP restoration. - Combo → Battle Skill rotation amplifies team damage. - Ultimate provides massive burst healing in a pinch. |
| Ember | [Role]: Healer [Highlights] - Heals effectively via Combo Skill. - Inflicts Vulnerability (Best for Physical teams). - Still a solid healer choice for Arts teams. |
Bolts and Shadows Stage Information
| Series | Inorganic Construct |
| Stage Mechanics | [Normal] Enemies are stronger [Agony] Enemies are stronger Enemies recover from Staggered more quickly, are harder to interrupt, and have greatly increased ATK range Heavy Sting a gains temporary immunity against all DMG regularly; defeat all Sting a to remove this immunity buff Tacticals and consumables cannot be used |
| Enemies |      [Normal]RamHeavy Sting[Hard] False WingsSting αHeavy Sting |
| First Clear Rewards |      [Common to Normal & Hard] T-Creds×24,000 Advanced Cognitive Carrier×3 Mark of Perseverance×1 Protohedron×8 Arms INSP Set×5 |
Related Arknights: Endfield Articles
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