# Umbral Monument Searing Scars: Agony Mode Guide > Master the Searing Scars series in Umbral Monument Agony mode. Chamber strategies, MVP operators, stat benchmarks, and 1,200 Oroberyl rewards guide. Source: https://endfieldhub.org/blog/umbral-monument-searing-scars-guide Published: 2026-04-05 Updated: 2026-09-24 Ready to test your roster? The Umbral Monument is Arknights: Endfield’s premier endgame challenge. If you’ve hit Authority Level 30 and finished Chapter 1, it’s time to lock in. The “Searing Scars” series features three deadly chambers, each with a Normal and Agony tier. Normal mode is your playground (items allowed!), but Agony mode is where the training wheels come off: no items, no natural SP regeneration, and absolutely no room for error. For the full chamber lineup, enemy resistances, and Normal/Agony enemy levels across every series, cross-reference the [Umbral Monument Database](https://endfieldhub.org/database/umbral-monument-database) while you read. --- ## TL;DR - Key Points * **Three chambers with Normal and Agony tiers** — Agony prohibits tactical items and natural SP regen * **Chamber I: Sea of Loathing** — Kill Cloud Stalkers first, destroy 3 anchors in 12 seconds * **Chamber II: Melting Point of Flesh** — Cannot Perfect Dodge, use Lift to interrupt flamethrowers * **Chamber III: Howling Flame** — Clear Heat stacks with Laevatain or Arts reactions at 3 stacks * **Stat benchmarks for Agony** — 450 team AI, 8,500+ ATK main carry, 25,000+ HP supports * **Rewards: \~1,200 Oroberyl** — Plus Marks of Perseverance for mastery and Trimmed Medal * **10-minute timer is generous** — Play mechanics, don’t rush --- ## Chamber I: Sea of Loathing ### The Vibe: Spatial Awareness and Priority Targeting **Boss:** The Breaking Gust (The Bird) **Primary Gimmick:** Roughly every minute, the boss seals one of your off-field operators in spectral chains. You have exactly 12 seconds to destroy three anchors around the arena. If you fail, that operator is KO’d instantly. **The Annoyance:** Three Cloud Stalkers spew smoke that slows you down and disables your dodge. ### Pro Tips **Kill the Stalkers First:** Use Gilberta to gather them up and wipe them early so you aren’t fighting through thick smoke. **Go Ranged:** Ranged operators like Yvonne or Fluorite make breaking the anchors trivial since they don’t have to chase them down. ### MVP Units | Operator | Role | Why They Work | | -------- | ---------- | ---------------------------------------------- | | Yvonne | Ranged DPS | Breaks anchors from distance, Cryo application | | Gilberta | Support | Groups Cloud Stalkers for AoE cleanup | | Fluorite | Ranged DPS | Safe anchor breaking, consistent damage | --- ## Chamber II: Melting Point of Flesh ### The Vibe: Positioning and Interrupt Discipline **Boss:** Two Bonekrusha Arsonists with permanent flamethrowers **Agony Rule:** You cannot perform Perfect Dodges. No I-frames for you. **Hazard:** Exploding slugs that hunt you down. ### Pro Tips **Lift is Life:** The Arsonists are vulnerable to physical status effects. Chen Qianyu is the MVP here — use her battle skill to repeatedly Lift them, interrupting their flamethrower attack before it leaves fire pools on the floor. **Pre-trigger Slugs:** Run toward the slugs to start their timer, then dash away before they blow. **Wheelchair Strategy:** If you’re struggling, bring Ember. Her shields and on-demand healing let you “wheelchair” through the floor damage. ### MVP Units | Operator | Role | Why They Work | | ----------- | --------- | --------------------------------------------- | | Chen Qianyu | Interrupt | Lifts Arsonists, prevents flamethrower uptime | | Ember | Sustain | Shields and healing counter floor damage | --- ## Chamber III: Howling Flame ### The Vibe: SP Management and Elemental Logic **Boss:** Hill Smasher (The Bull) **Gimmick:** It enters an “Enraged” state and builds Heat Stacks. If it reaches 4 stacks, it clears them and does a room-wide explosive slam that deals unavoidable burn damage. **Agony Rule:** While the boss is Enraged, natural SP regeneration is disabled. You only gain SP from basic attack finishers and dodges. ### Pro Tips **Eat the Stacks:** Use Laevatain! Her final strike “absorbs” the boss’s heat stacks, preventing the nuke entirely while fueling her own skills. **Elemental Reset:** If you don’t have Laevatain, use an Arts Reaction (Electric, Cryo, or Nature) when the boss hits 3 stacks to reset his counter. Perlica or Estella are great for this. **Save Your SP:** Don’t spam skills during the normal phase. Store at least 2 bars of SP for when the bull gets angry. ### MVP Units | Operator | Role | Why They Work | | --------- | ---------------- | -------------------------------------------- | | Laevatain | Heat DPS | Absorbs heat stacks, prevents room-wide nuke | | Perlica | Electric Support | Arts reaction resets boss stack counter | | Estella | Electric Support | Alternative for Arts reaction reset | --- ## Quick-Reference Table | Chamber | Boss | Primary Strategy | MVP Units | | --------------- | ------------- | ---------------------------------- | ------------------ | | Sea of Loathing | Breaking Gust | Kill Stalkers, destroy chains fast | Yvonne, Gilberta | | Melting Point | Arsonists | Interrupt flamethrowers with Lift | Chen Qianyu, Ember | | Howling Flame | Hill Smasher | Clear Heat stacks with reactions | Laevatain, Perlica | --- ## Stat Benchmarks for Agony Mode If you’re hitting a wall, check your numbers. Level 90 Agony bosses are no joke. ### Minimum Requirements | Stat | Target | Consequence if Below | | ------------------------ | --------- | ------------------------------------ | | Arts Intensity (Team AI) | 450 total | 40% Physical Damage penalty | | Main Carry ATK | 8,500+ | Insufficient damage output | | Support HP | 25,000+ | Cannot survive un-telegraphed bursts | ### Understanding the AI Threshold The 450 Arts Intensity requirement is critical. Dropping below this threshold triggers a 40% Physical Damage penalty across your entire team. This is often the hidden reason why Agony clears fail — you’re not just underpowered, you’re actively penalized. --- ## What’s in it for You? Clearing the series isn’t just for bragging rights (though that Trimmed Medal looks sweet). ### Oroberyl You can net roughly 1,200 Oroberyl through the event track. This is enough for approximately 12-15 pulls toward your next 6-star operator. ### Mastery Materials Marks of Perseverance are crucial for late-game character talent mastery. Each operator skill mastery (M1-M3) requires multiple Marks, making this one of the most valuable rewards. ### The Flex * **Normal mode** gives the currency * **Agony mode** gives the Mark of Perseverance and the elite “Trimmed” medal ### Bottom Line Don’t rush. The 10-minute timer is generous. Play the mechanics, reset the stacks, and claim your rewards! --- ## Team Composition Framework ### Universal Support Picks These operators work across all three chambers: | Operator | Role | Versatility | | -------------- | ------------- | ----------------------------------- | | Ardelia | Healer | Healing echo applies to entire team | | Gilberta | Crowd Control | Groups enemies for AoE efficiency | | Endministrator | Flex | Provides Breach and physical damage | ### Elemental Coverage Ensure your team has at least two different Arts elements for reaction-based stack resets: * **Heat:** Laevatain, Ember, Wulfgard * **Electric:** Perlica, Estella, Antal * **Cryo:** Yvonne, Xaihi, Last Rite * **Nature:** Chen Qianyu, Tangtang, Mi Fu --- ## Common Mistakes to Avoid 1. **Ignoring Cloud Stalkers in Chamber I** — The smoke disable will cost you the chain mechanic 2. **Spamming Dodge in Chamber II** — Perfect Dodge is disabled; rely on Lift interrupts instead 3. **Forgetting Heat Stack Count in Chamber III** — Track the boss’s Enraged state and prepare your reaction 4. **Under-leveled Support Operators** — 25k HP is the minimum for survival in Agony 5. **No Arts Reaction Coverage** — Bring at least two elements for stack resets --- ## Final Thoughts The Searing Scars series is a skill check that rewards game knowledge over raw power. While meeting the stat benchmarks is important, understanding each chamber’s mechanics is the difference between a failed run and that sweet Trimmed Medal. Take your time, learn the patterns, and remember: the 10-minute timer is there to prevent ultra-defensive stalls, not to rush you. Play smart, not fast. Good luck, Endministrator!