Hero Wars Nightfall Event | Umbra Event 2026
Get ready for the Hero Wars Nightfall Event — an all-new event spotlighting the Titan Umbra and Caligo that brings a fresh mini-season format, a dedicated event map, and brand-new buff mechanics.
Much like the previous Verdoc event, you’ll navigate through several chapters featuring both hero- and titan-style battles, collect exclusive event items, and unlock major rewards by defeating bosses once you’ve amassed enough buffs.
With proper currencies like Valor Coins, Energy Crystals and Sapphire Medallions, expert shops and relic upgrades, the Hero Wars Nightfall Event isn’t just another event — it’s a pure power grind to the next tier of your roster.
Hero Wars Nightfall Event – Overview
The Hero Wars Nightfall Event introduces the mighty Titan duo Umbra and Caligo, offering a new way of doing Titan events in Hero Wars. It merges a new adventure map, relic upgrade, and some currencies into a single progression-based, strategic experience.
- A dedicated adventure map consisting of seven chapters, exclusive bosses, and challenge scaling that pushes heroes and titans.
- A mini-season format such as that of the Guus and Verdoc events, in which reward for repeated play is rewarded by long-term progress indicators.
- A powerful Workshop system for upgrading Relics and unlocking Star Ring buffs to optimize rewards and combat potential.
- New event currencies — Energy Crystals, Valor Coins, and Sapphire Medallions — each linked to a special activity like battles, quests, and the Festival Gacha.
- An exclusive Festival Shop that employs Sapphire Medallions for exchanging Umbra and Caligo materials, Titan relics, and upgrade resources.
Unlike previous events, the Hero Wars Nightfall Event focuses both on hero and titan growth, calling for conscious energy management, relic optimization, and thoughtful usage of resources in order to maximize the potential of Umbra and Caligo.
Umbra Skills – Hero Wars Nightfall Event
Umbra and Caligo are a Darkness element Summoner duo fighting from the Back Line. Umbra summons Caligo, who spreads an aura that takes on the damage dealt to enemies within it, then detonates when his timer ends — dealing damage based on Attack plus his remaining Health. Here are their two key skills:
Caligomora
Summons Caligo for 7 seconds. While he is active, he spreads an aura. Caligo receives damage dealt to opponents inside the aura. After the timer expires, Caligo dies. At the moment of his death, opponents inside the aura receive damage based on Attack and additional damage that is equal to Caligo’s remaining Health. Caligo’s Health is based on Umbra’s maximum Health. Caligo can’t be targeted directly.
Spiritual Bond: Darkness
Umbra and Caligo envelop themselves in shadows, forming a bond with the element of Darkness. They start the battle with additional Energy and generate extra Energy for Dark Spirit Totem activation.
Hero Wars Nightfall Event Boss Battle
The Hero Wars Nightfall Event chapter-ending bosses can be accessed by reaching the respective buffs. Titan and hero fights alternate in raids, so preparation and synergy among your team is more critical than your damage.
Here in this section (when the event starts), I’ll provide per-chapter strategies with images of the exact same heroes or titans that you will need for each fight—so you can swipe the lineups and conquer each stage efficiently.
This submission type allows the Hero Wars players to submit their boss fight teams for the Nightfall Event. Players can submit a screenshot of the team they used, identify the chapter and the battle type (heroes or titans), and leave brief comments on their strategy. Each submission is sent directly to the team at Olympus through email to help build a guide to the community consisting of real player-tested teams and tactics.
Boss Battles – Chapter 1-7
CHAPTER 1
Coming Soon
Boss Fight
CHAPTER 2
Coming Soon
Boss Fight
CHAPTER 3
Coming Soon
Boss Fight
CHAPTER 4
Coming Soon
Boss Fight
CHAPTER 5
Coming Soon
Boss Fight
CHAPTER 6
Coming Soon
Boss Fight
CHAPTER 7
Coming Soon
Boss Fight
Hero Wars Nightfall Event Rewards
The Hero Wars Nightfall Event introduces seven boss battles switching between Titan and Hero duels. Each chapter must be unlocked using special Buffs and Energy Crystals, and the rewards become more valuable the further you go. The battles reward main upgrade materials such as Essence of the Elements, Titan Skin Stones, Primal Catalysts, and even the elusive Absolute Elemental Spirit Summoning Sphere.
Following is a list of all chapters, their Buff and Energy Crystal price, and the total reward for each boss level. If you have already battled one of these battles and experienced different drops or amounts of buff, you can share your boss fight photo through the form below towards the end of this guide so we can keep the information fully up to date for the community.
Nightfall Event — Boss Fights & Rewards
These are the seven boss-fight chapters of the Hero Wars Nightfall Event. Buff requirements increase per stage, alternating between Titan and Hero battles. Energy Crystals shown are per chapter, not cumulative.
| No. | Chapter | Energy Crystals (per chapter) |
Buffs | Complete Rewards |
|---|---|---|---|---|
| 1 | Chapter 1 (Titans) | — | — |
 50,000 Essence of the Elements 10,000 Valor Coin 1 Sapphire Medallion |
| 2 | Chapter 2 (Heroes) | — | — |
 30 Large Skin Stone Chest20,000 Valor Coin2 Sapphire Medallion |
| 3 | Chapter 3 (Titans) | 50 | 50 |
 25,000 Titan Skin Stone20,000 Valor Coin2 Sapphire Medallion |
| 4 | Chapter 4 (Heroes) | 110 | 100 |
 150 Primal Catalyst20,000 Valor Coin2 Sapphire Medallion |
| 5 | Chapter 5 (Titans) | 160 | 150 |
 100 Elemental Catalyst50,000 Valor Coin10 Sapphire Medallion |
| 6 | Chapter 6 (Heroes) | 210 | 200 |
 1 Gift of the Dominion50,000 Valor Coin10 Sapphire Medallion |
| 7 | Chapter 7 (Titans) | 260 | 250 |
 1 Absolute Elemental Spirit Summoning Sphere50,000 Valor Coin10 Sapphire Medallion |
| Total | — | 790 | 750 |
220,000 Valor Coin37 Sapphire Medallion |
Unlocking Umbra and Caligo – Nightfall
To unlock Umbra and Caligo during the Nightfall event, players must collect 3,130 soul stones. These can be obtained from event progress, Valor Coins, and limited-time bundles that are rolled out for the event. Below is the amount of soul stones required for each star rank. The final evolution requires planning and constant activity throughout the event.
Umbra and Caligo Soul Stone Upgrade
To unlock and evolve Umbra and Caligo during the Nightfall event, players must collect a total of 3,130 Soul Stones. Each star rank requires a specific number of stones, as shown below. Progress accumulates through event rewards and bundles.
Valor Coins Needed for Umbra and Caligo – Nightfall
Purchasing Umbra and Caligo to higher star levels costs a large amount of Valor Coins, which are acquired through event rewards and fighting bosses within the Nightfall event.
Each level represents the strength of Umbra’s relic upgrades and determines how well their elemental and primal energy rank in battle.
The greater the chapter and relic level, the higher coin investment to move forward.
The graph below indicates the estimated Valor Coins to increase Umbra and Caligo’s stars at different levels with the average 10% grand prize drop rate assumed.
Remember that outcomes may differ — lucky draws will decrease the overall expenditure, whereas botched jackpots will do the opposite.
|
Level 1 | Level 2 | Level 3 | Level 4 | Level 5 | Level 6 |
|---|---|---|---|---|---|---|
| Umbra ★ | 5,600 | 5,300 | 5,100 | 4,900 | 4,700 | 4,400 |
| Umbra ★★ | 9,300 | 8,900 | 8,500 | 8,100 | 7,800 | 7,400 |
| Umbra ★★★ | 27,800 | 26,700 | 25,600 | 24,400 | 23,300 | 22,200 |
| Umbra ★★★★ | 92,600 | 88,900 | 85,200 | 81,500 | 77,800 | 74,100 |
| Umbra ★★★★★ | 166,700 | 160,000 | 153,300 | 146,700 | 140,000 | 133,300 |
| Umbra ★★★★★★ | 277,800 | 266,700 | 255,600 | 244,400 | 233,300 | 222,200 |
Umbra Artifact Nephtis Horn – Hero Wars Nightfall Event
Umbra’s exclusive first artifact — Nephtis Horn — is her elemental weapon, boosting Elemental Damage. While its stats are relatively minor compared to her overall Titan power, it remains one of the most valuable event-limited artifacts in the entire game.
It only appears during the Nightfall event and can’t be obtained normally from the campaign or any regular chests.
It is only available to buy during the event from the Festival Shop, Battle Pass, or Mystery Island. The players need to make sure to obtain it while it’s still available, as it may not return for a few months after the event finishes.
If not seen, it will stay locked up until its next rotation during a Titan event.
| ★ | Fragment | Fragment (Total) |
|---|---|---|
| 1 | 60 | 60 |
| 2 | 440 | 500 |
| 3 | 1,400 | 1,900 |
| 4 | 2,500 | 4,400 |
| 5 | 5,000 | 9,400 |
| 6 | 9,000 | 18,400 |
Umbra Artifact Cosmos’s Seal – Hero Wars Nightfall Event
Cosmos’s Seal is Umbra’s third artifact, boosting Attack and Health and shared among Summoner-type Titans.
It increases Umbra’s base stats and plays a key role in maximizing her performance in both offense and defense.
This artifact can also be obtained through the Festival Shop, Battle Pass, or Mystery Island — but like Nephtis Horn, it is available only during the Nightfall event.
Further copies purchased from this event are meant to be used by other Titans in the future, so it’s worthwhile even in addition to its present usefulness to Umbra.
If missed, it will be unavailable until another future return of this event.
| ★ | Fragment | Fragment (Total) |
|---|---|---|
| 1 | 60 | 60 |
| 2 | 440 | 500 |
| 3 | 1,400 | 1,900 |
| 4 | 2,500 | 4,400 |
| 5 | 5,000 | 9,400 |
| 6 | 9,000 | 18,400 |
Hero Wars Nightfall Event Relics
Three relics define the Hero Wars Nightfall Event. Each provides unique benefits and upgrade paths:
- Tome of Greed: Grants extra Valor Coins whenever you spend energy. Can be upgraded to level 15.
- Grail of Generosity: Reduces reward costs in the Altar of Fate. Can be upgraded to level 18.
- Amulet of Battle: Boosts buffs during boss fights to strengthen your lineup.
Upgrading relics requires strategic resource allocation. The Nightfall event doesn’t offer a single “optimal” route — players must balance between relic upgrades, boss fights, and energy management.
Tome of Greed — Energy & Valor Coin Bonus – Nightfall
Tome of Greed adds more Valor Coins for the event as you spend energy.
Each level increases your bonus by +1,000 Valor Coins. Because upgrades cost energy, it’s best to push this relic before you start heavy energy spending during the Nightfall event.
The table below lists the energy cost per level and the total Valor Coin bonus at that level.
| Level |  Energy Cost (per level) |
Valor Coin Bonus (at level) |
|---|---|---|
| 1 | 0 | 1,000 |
| 2 | 10 | 2,000 |
| 3 | 20 | 3,000 |
| 4 | 30 | 4,000 |
| 5 | 40 | 5,000 |
| 6 | 50 | 6,000 |
| 7 | 60 | 7,000 |
| 8 | 70 | 8,000 |
| 9 | 80 | 9,000 |
| 10 | 80 | 10,000 |
| 11 | 80 | 11,000 |
| 12 | 80 | 12,000 |
| 13 | 80 | 13,000 |
| 14 | 80 | 14,000 |
| 15 | 80 | 15,000 |
| Total | 840 | 15,000 |
Grail of Generosity Upgrade Costs – Nightfall
In the Nightfall event, the Grail of Generosity reduces the cost of rewards in the Altar of Fate. Each level you upgrade lowers the price, letting you stretch your Valor Coins further. Because upgrades consume energy, it’s key to know the energy required at each step and the discount you unlock.
Use the table below to see the energy cost per level and the coin-cost reduction in the Altar of Fate. Plan your energy spend to decide how far to push the Grail during the Nightfall event and avoid overpaying for rewards.
| Level | Energy Cost |
 Reduction in Altar of Fate Cost |
|---|---|---|
| 1 | 0 | 100 (2800 → 2700) |
| 2 | 10 | 200 (2800 → 2600) |
| 3 | 20 | 300 (2800 → 2500) |
| 4 | 30 | 400 (2800 → 2400) |
| 5 | 40 | 500 (2800 → 2300) |
| 6 | 50 | 600 (2800 → 2200) |
| 7 | 60 | 700 (2800 → 2100) |
| 8 | 70 | 800 (2800 → 2000) |
| 9 | 80 | 900 (2800 → 1900) |
| 10 | 90 | 1000 (2800 → 1800) |
| 11 | 100 | 1100 (2800 → 1700) |
| 12 | 100 | 1200 (2800 → 1600) |
| 13 | 100 | 1300 (2800 → 1500) |
| 14 | 100 | 1400 (2800 → 1400) |
| 15 | 100 | 1500 (2800 → 1300) |
| 16 | 100 | 1600 (2800 → 1200) |
| 17 | 100 | 1700 (2800 → 1100) |
| 18 | 100 | 1800 (2800 → 1000) |
| Total | 1250 |
Energy Requirements for Boss Fights
Completing all boss battles in the Nightfall event requires a total of 790 Energy. Each chapter has its own Energy requirement, allowing players to plan exactly how much they’ll need before beginning their runs.
Once you’ve covered the full boss-fight energy cost, any remaining Energy can be used to upgrade relics such as the Tome of Greed and the Grail of Generosity, helping you maximize rewards and efficiency throughout the event.
| Level |  Buffs |
Energy Cost |
Cumulative Energy |
|---|---|---|---|
| Unlocks Chapter 3 — Target Level 5 (Cumulative at L5: 50) | |||
| 1 | 0 | 0 | 0 |
| 2 | 20 | 10 | 10 |
| 3 | 30 | 10 | 20 |
| 4 | 40 | 10 | 30 |
| 5 | 50 | 20 | 50 |
| Chapter 3 Summary | — | From L1 → L5: 50 | Cumulative: 50 |
| Unlocks Chapter 4 — Target Level 10 (Cumulative at L10: 160) | |||
| 6 | 60 | 20 | 70 |
| 7 | 70 | 20 | 90 |
| 8 | 80 | 20 | 110 |
| 9 | 90 | 20 | 130 |
| 10 | 100 | 30 | 160 |
| Chapter 4 Summary | — | From L5 → L10: 110 | From L1 → L10: 160 |
| Unlocks Chapter 5 — Target Level 15 (Cumulative at L15: 320) | |||
| 11 | 110 | 30 | 190 |
| 12 | 120 | 30 | 220 |
| 13 | 130 | 30 | 250 |
| 14 | 140 | 30 | 280 |
| 15 | 150 | 40 | 320 |
| Chapter 5 Summary | — | From L10 → L15: 160 | From L1 → L15: 320 |
| Unlocks Chapter 6 — Target Level 20 (Cumulative at L20: 530) | |||
| 16 | 160 | 40 | 360 |
| 17 | 170 | 40 | 400 |
| 18 | 180 | 40 | 440 |
| 19 | 190 | 40 | 480 |
| 20 | 200 | 50 | 530 |
| Chapter 6 Summary | — | From L15 → L20: 210 | From L1 → L20: 530 |
| Unlocks Chapter 7 — Target Level 25 (Cumulative at L25: 790) | |||
| 21 | 210 | 50 | 580 |
| 22 | 220 | 50 | 630 |
| 23 | 230 | 50 | 680 |
| 24 | 240 | 50 | 730 |
| 25 | 250 | 60 | 790 |
| Chapter 7 Summary | — | From L20 → L25: 260 | From L1 → L25: 790 |
| Total to Unlock Chapter 7 (L1 → L25) | — | — | 790 |
Hero Wars Nightfall Event Battle Pass
The Hero Wars Nightfall Event Battle Pass offers valuable rewards for both free and Golden Ticket players throughout the event. By completing daily and event missions, players progress through multiple levels, unlocking items such as Energy Crystals, Essence of the Elements, Titan Potions, and the exclusive artifacts Nephtis Horn and Cosmos’s Seal.
Each level grants a set of Free Rewards, while Golden Ticket owners receive enhanced rewards including higher quantities, rare materials, and special items. The pass spans 41 levels, ending with Titan Resource Chests that can provide key upgrade materials for your titans.
Use the table below to see the exact rewards at each level and plan your progress through the Nightfall event more efficiently.
| Level | Free Rewards | Golden Ticket Rewards |
|---|---|---|
| 1 | 10 Energy Crystal |  1 Player’s Avatar |
| 2 |  15 Titan Artifact Sphere | 75 Titan Artifact Sphere |
| 3 |  500 Emerald | 2,500 Emerald |
| 4 |  3,000 Titan Potion | 15,000 Titan Potion |
| 5 | 10 Energy Crystal | 50 Energy Crystal |
| 6 |  2 Bottled Energy | 10 Bottled Energy |
| 7 |  5 Summoning Sphere | 25 Summoning Sphere |
| 8 | 6,000 Essence of the Elements | 30,000 Essence of the Elements |
| 9 |  2,000,000 Gold | 10,000,000 Gold |
| 10 | 10 Energy Crystal | 50 Energy Crystal |
| 11 | 2,000 Titan Skin Stone | 10,000 Titan Skin Stone |
| 12 | 15 Titan Artifact Sphere | 75 Titan Artifact Sphere |
| 13 | 100 Nephtis Horn | 500 Nephtis Horn |
| 14 | 500 Emerald | 2,500 Emerald |
| 15 | 10 Energy Crystal | 50 Energy Crystal |
| 16 | 6,000 Essence of the Elements | 30,000 Essence of the Elements |
| 17 | 3,000 Titan Potion | 15,000 Titan Potion |
| 18 | 15 Titan Artifact Sphere | 75 Titan Artifact Sphere |
| 19 | 5 Summoning Sphere | 25 Summoning Sphere |
| 20 |  2 Explorer’s Move | 20 Explorer’s Move |
| 23 | 100 Cosmos’s Seal | 500 Cosmos’s Seal |
| 41– |  1 Titan Resource Chest | 5 Titan Resource Chest |
Event Frame & Avatars – Nightfall
The Nightfall event includes cosmetic rewards you can keep forever. Unlock a unique profile frame and a set of themed avatars to show you participated in the Hero Wars Nightfall Event.
Conclusion – Hero Wars Nightfall Event
The Hero Wars Nightfall Event is more than just another titan challenge—it’s an opportunity to build lasting strength in your Titan lineup and expand your Titan resource reserves. The event’s design rewards both consistency and planning, offering valuable materials through boss battles, relic upgrades, and the new Nightfall Battle Pass.
With careful energy management and daily engagement, you can easily maximize your progress without wasting resources. Whether your goal is to push Umbra and Caligo’s development, farm elemental resources, or collect Titan Chests, this event gives every type of player a clear path forward.
If you’re looking to optimize your rewards, focus on completing boss battles early, upgrading your relics strategically, and reaching at least the mid-levels of the Battle Pass for the best overall returns. Every step brings your Titans one level closer to perfection.
Nightfall Map Mysterious Island provides valuable resources. Check out Hero Wars Calendar for upcoming events. If you missed your reward check out Hero Wars Free Gift. For Pet Adventure check out Hero Wars Adventure
You can explore more about the Hero Wars universe and its full roster of heroes on the official Hero Wars site
FAQ — Hero Wars Nightfall Event
The Hero Wars Nightfall Event is a time-limited event dedicated to the new Titan duo, Umbra and Caligo. Players explore a themed map, defeat bosses, and earn special resources used to upgrade titans and relics.
Defeating all bosses requires approximately 790 energy. Any additional energy can be directed toward upgrading relics like the Grail of Generosity to lower costs in the Altar of Fate.
This relic reduces the cost of rewards inside the Altar of Fate. Upgrading it allows players to spend fewer Valor Coins when exchanging for event rewards, making it a smart long-term investment.
The Golden Ticket unlocks the premium side of the Nightfall Battle Pass, offering significantly higher quantities of key resources such as Titan Potions, Artifact Spheres, Skin Stones, and exclusive items like Umbra’s avatar and exclusive artifacts.
Absolutely. The free side of the Battle Pass still provides a balanced mix of Emeralds, Energy Crystals, Bottled Energy, and Titan resources. Even without the Golden Ticket, consistent play yields great progress.
Experience is earned through event missions, energy spending, and completing boss fights. The more active you are during the event, the faster you unlock both free and premium rewards.
Plan your energy usage in advance, upgrade relics only when necessary, and prioritize boss completions before upgrades. Collect and open resource chests toward the end of the event for maximum efficiency.