Hero Wars Carnival Of Shadow: Electra Event
Get ready to spark new power! The Hero Wars Carnival of Shadow Event, officially titled Under the Power of Electricity, is set to energize Hero Wars this November. The pre-order phase begins on November 7, followed by the thrilling Electra Adventure Event launching on November 14. Just like past special events such as Lyria and Guus, this limited-time adventure features unique mechanics, challenging boss battles, and exclusive relic rewards. It also introduces survival-based gameplay and a special event currency that changes how players plan their strategy and progress. This guide covers everything we know so far about the Electra Event—from boss fight systems and relic upgrades to energy requirements, the battle pass, and quest structure. By preparing early, you can maximize your rewards and save valuable resources once the Under the Power of Electricity Event begins.
Hero Wars Carnival Of Shadow: Electra Event Overview
The Hero Wars Carnival Of Shadow Electra Event follows the style of Lyria and Guus, featuring:
- Survival-based boss fights
- Relic upgrades that change event rewards
- Special Stall Coins as the event currency
- An exclusive mini-season
- A unique adventure map
- Event-specific buffs
Unlike standard events, the Under the Power of Water Event emphasizes strategy, resource management, and careful planning.
Hero Wars Carnival Of Shadow Electra Event Boss Fight
At the heart of the Hero Wars Carnival Of Shadow Electra Event lies the boss fight. Similar to the Guus and Lyria events, this challenge focuses on endurance, not raw damage.
- Each round your team survives, you earn Stall Coins.
- Stall Coins can be exchanged in the event shop for hero soul stones, upgrade items, and Titan materials.
- Once defeated, you can re-enter the fight and continue gathering coins.
- Success depends on lineups with strong healers, shields, and defensive synergy.
The longer you stall, the more Stall Coins you collect, making survival the true strategy of the Under the Power of Water Event.
Boss Fights
In the Hero Wars Carnival Of Shadow Electra Event, chapter bosses are unlocked as you progress through the charged nodes. Each stage requires smart team combinations and survival strategy more than raw damage, so synergy and positioning are the keys to success.
Once the event begins, this section will feature chapter-by-chapter team examples, including exact hero and titan lineups used by top players, helping you copy effective solutions and clear each boss faster and safer.
You can also contribute to the community guide by submitting your own battle win. Tap the 📸 Submit Your Image button to upload your winning team screenshot, choose the chapter and battle type (hero or titan), and add a short note about your strategy. All submissions go directly to the Olympus team to build a player-verified Electra boss guide for everyone.
[verdoc_boss_submit]
Chapter 1 -Echo’s Heart
Credit: Sword in the stone
Chapter 2
Olympus
Credit: uzen stha
Chapter 3
Olympus
Credit: Anonymus
Credit: uzen shrestha
Chapter 4
Olympus
Chapter 5
Olympus
Credit: .T
Chapter 6
Olympus
Credit: Holger
Credit: Sandro Pereira
Chapter 7
Olympus
Credit: Gucky
Credit: GhostTeam
Hero Wars Carnival Of Shadow Electra Event Rewards
The Hero Wars Carnival Of Shadow Electra Event introduces a series of seven unique boss fights, each tied to a different chapter. While the chapter names will be rebranded under the Electra theme, the rewards for completing them remain exactly the same. Each stage requires a specific number of Buffs and Energy Crystals to progress, and defeating the boss grants valuable resources such as Valor Coins, Sapphire Medallions, Soul Stone Chests, Skin Stone Chests, Gifts of the Dominion, and even the Absolute Elemental Spirit Summoning Sphere.
Remember — the Energy Crystals shown in the table below are per chapter only, not cumulative. To unlock all buffs and claim every reward, you’ll need to progress through all seven chapters step by step. This structure makes the Hero Wars Carnival Of Shadow Electra event both a resource challenge and a tactical progression path for players aiming to maximize their gains.
Electra Boss Fights — Chapters & Rewards
These are the seven boss-fight chapters. Names will be renamed to Electra event variants later, rewards stay the same. Energy Crystals are per chapter, not cumulative.
(per chapter)
1 Hero Soul Stone Chest
10,000 Valor Coin
1 Sapphire Medallion
30 Large Skin Stone Chest20,000 Valor Coin2 Sapphire Medallion
1 Epic Gift of the Dominion20,000 Valor Coin2 Sapphire Medallion
1 Legendary Gift of the Dominion20,000 Valor Coin2 Sapphire Medallion1 Hero Resource Chest50,000 Valor Coin10 Sapphire Medallion
1 Gift of the Dominion50,000 Valor Coin10 Sapphire Medallion
1 Absolute Elemental Spirit Summoning Sphere50,000 Valor Coin10 Sapphire MedallionUnlocking Electra
To recruit Electra, players must collect 630 soul stones. These are obtained by spending Valor Coins, with a clear table showing how many coins are required for each star rank depending on relic levels. Careful planning is needed to reach the final unlock in Hero Wars Carnival Of Shadow Electra Event.
| Star | Soul Stones | Cumulative |
|---|---|---|
| ★ | 10 | 10 |
| ★★ | 20 | 30 |
| ★★★ | 50 | 80 |
| ★★★★ | 100 | 180 |
| ★★★★★ | 150 | 330 |
| ★★★★★★ | 300 | 630 |
| Total | 630 | 630 |
Valor Coins Needed for Electra
Now in Hero Wars Carnival of Shadow Electra event, upgrading Electra to 6★ requires a significant investment of Valor Coins, and the exact amount depends on your Grail of Generosity relic level. The higher the relic level, the lower the Valor Coin cost for each upgrade.
At lower star ranks, the difference isn’t dramatic. But once you’re aiming for Electra’s final stars, the reduction from Grail upgrades saves a massive amount of coins. This makes upgrading the relic an essential step if you plan to fully develop Electra during the Under the Power of Water Event.
The table below shows how many Valor Coins are needed for each star rank at different Grail of Generosity levels:
| Star Rank |  Lv1 |
Lv2 |
Lv3 |
Lv4 |
Lv5 |
Lv6 |
|---|---|---|---|---|---|---|
| ★★ | 20,800 | 20,000 | 19,200 | 18,300 | 17,500 | 16,700 |
| ★★★ | 34,700 | 33,300 | 31,900 | 30,600 | 29,200 | 27,800 |
| ★★★★ | 69,400 | 66,700 | 63,900 | 61,100 | 58,300 | 55,600 |
| ★★★★★ | 104,200 | 100,000 | 95,800 | 91,700 | 87,500 | 83,300 |
| ★★★★★★ | 208,300 | 200,000 | 191,700 | 183,300 | 175,000 | 166,700 |
Hero Wars Carnival Of Shadow Electra Event Relics
Three relics define the Hero Wars Carnival Of Shadow Electra Event. Each provides unique benefits and upgrade paths:
- Tome of Greed: Grants extra Stall 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 Under the Power of Water 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
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 Hero Wars Carnival Of Shadow Electra Event / Under the Power of Water 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
The Grail of Generosity relic in the Hero Wars Carnival Of Shadow Electra Event reduces the cost of rewards in the Altar of Fate. Each level you upgrade lowers the price, allowing you to stretch your Valor Coins further. Since upgrading requires energy, it’s important to know exactly how much you’ll need at each stage and how much of a reduction you’ll unlock.
The table below lists the energy cost per level and the coin cost reduction you gain in the Altar of Fate. Use this information to plan your energy spending and decide how far to push the relic during the Under the Power of Water Event.
| 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 Fight
Completing all Electra boss in Hero Wars Carnival Of Shadow Electra Event fights requires 790 energy in total. With chapter-by-chapter breakdowns available, players can calculate exactly how much they need before spending.
Once this threshold is met, any additional energy can safely be directed toward upgrading relics like the Tome of Greed and Grail of Generosity.
| 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 Carnival Of Shadow Electra Event Battle Pass
The Hero Wars Carnival Of Shadow Electra Event also features a Battle Pass. Players aiming to maximize Electra will likely need to purchase it, as it contains the locked Mythic Skin for Electra.
- Free rewards are available at each level.
- The Golden Pass unlocks premium rewards including the Mythic Skin.
Battle Pass Rewards – Hero Wars Carnival Of Shadow Electra Event
| Level | Free Rewards | Golden Ticket Rewards |
|---|---|---|
| 1 | 10 Energy Crystal | 1 Player’s Avatar |
| 2 | 1,000 Emerald | 5,000 Emerald |
| 3 | 50 Skin Stone Chest | 250 Skin Stone Chest |
| 4 | 2 Soul Crystal | 10 Soul Crystal |
| 5 | 10 Energy Crystal | 50 Energy Crystal |
| 6 | 50 Wish Crystal | 250 Wish Crystal |
| 7 | 4,000 Artifact Coin | 20,000 Artifact Coin |
| 8 | 20 Rare Enchantment Rune | 100 Rare Enchantment Rune |
| 9 | 40 Absolute Artifact Essence | 160 Absolute Artifact Essence |
| 10 | 10 Energy Crystal | 50 Energy Crystal |
| 11 | 2 Bottled Energy | 10 Bottled Energy |
| 12 | 3 Chaos Core | 15 Chaos Core |
| 13 | 50 Wish Crystal | 250 Wish Crystal |
| 14 | 50 Skin Stone Chest | 250 Skin Stone Chest |
| 15 | 10 Energy Crystal | 50 Energy Crystal |
| 16 | 20 Rare Enchantment Rune | 100 Rare Enchantment Rune |
| 17 | 40 Absolute Artifact Scroll | 160 Absolute Artifact Scroll |
| 18 | 1,000 Emerald | 5,000 Emerald |
| 19 | 2 Bottled Energy | 10 Bottled Energy |
| 20 | 2 Explorer’s Move | 20 Explorer’s Move |
| 21 | 50 Wish Crystal | 250 Wish Crystal |
| 22 | 2,000,000 Gold | 10,000,000 Gold |
| 23 | 4,000 Artifact Coin | 20,000 Artifact Coin |
| 24 | 40 Absolute Artifact Essence | 160 Absolute Artifact Essence |
| 25 | 1 Sapphire Medallion | 5 Sapphire Medallion |
| 26 | 2 Bottled Energy | 10 Bottled Energy |
| 27 | 1,000 Emerald | 5,000 Emerald |
| 28 | 50 Wish Crystal | 250 Wish Crystal |
| 29 | 40 Wish Insignia | 200 Wish Insignia |
| 30 | 2 Explorer’s Move | 20 Explorer’s Move |
| 31 | 20 Rare Enchantment Rune | 100 Rare Enchantment Rune |
| 32 | 40 Absolute Artifact Scroll | 160 Absolute Artifact Scroll |
| 33 | 50 Skin Stone Chest | 250 Skin Stone Chest |
| 34 | 2 Bottled Energy | 10 Bottled Energy |
| 35 | 1 Sapphire Medallion | 5 Sapphire Medallion |
| 36 | 1,000 Emerald | 5,000 Emerald |
| 37 | 40 Absolute Artifact Metal | 160 Absolute Artifact Metal |
| 38 | 40 Wish Insignia | 200 Wish Insignia |
| 39 | 2 Eternal Seed | 10 Eternal Seed |
| 40 | 1 Sapphire Medallion | 1 Electra’s Mythic Skin |
| 41– | 2 Event Box | 10 Event Box |
Hero Wars Carnival Of Shadow Electra Event Quests
The Under the Power of Water Event includes two sets of quests:
Main Tasks
These are your core, repeatable objectives for the event. Each line shows the maximum progress that counts toward rewards.
- Win battles in the event — MAX 64
Clear fights on the event map and in boss encounters. Each win moves the counter; caps at 64. - Buy Emerald — MAX 120,000
Any Emerald purchase contributes up to a total of 120,000. - Spend Emerald — MAX 150,000
Use Emeralds on your usual priorities; only the first 150,000 spent are counted. - Get a hero of a maximum rank by collecting Fragments in the Hero Stall — MAX 11
Recruit or rank-up heroes via the Hero Stall by gathering fragments. Credit is counted up to 11 heroes. - Buy any pet in the Hero Stall — MAX 10
Purchase pets from the Hero Stall. Up to 10 count toward the quest. - Get VIP points — MAX 7,000
Earn VIP points through purchases or bundles; the quest stops tracking after 7,000. - Spend Stall Coin — MAX 5,000
Use your Stall Coins in the event shop; only the first 5,000 spent are recorded. - Spend Sapphire Medallion — MAX 100
Spend up to 100 Sapphire Medallions for full credit.
Sub Tasks (Electra-Focused)
These objectives push Electra’s development during the event. All caps below are the maximum amounts counted for rewards.
- Gift of the Elements level for Electra — MAX 50
Invest Gift of the Elements levels into Electra, up to 50 counted. - Evolution level for Electra — MAX Star 6
Evolve Electra through star ranks; credit caps at 6★. - Promote Electra — MAX Red
Promote Electra through color ranks; tracking ends at Red. - 1st Artifact level for Electra — MAX 80
Level Electra’s first artifact to as high as 80 for full quest credit. - Electra glyph levels — MAX 150
Raise Electra’s glyphs; a total of 150 levels count. - Upgrade any hero’s skin — MAX 150
Improve skins across your roster (not just Electra). Up to 150 levels are counted. - Unlock an Ascension glyph in the Ascension Spire — MAX 30
Open Ascension glyphs; up to 30 unlocks count. - Total ability levels for Electra — MAX 400
Level Electra’s skills; a combined total of 400 levels is tracked.
For more details about the heroes and lore behind the Hero Wars Carnival of Shadow Electra Event, you can also visit the official Hero Wars Universe page. 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. Also, Check out Hero Wars Electra Skills, Hero Wars Electra Teams, Hero Wars Electra Event Calculator, Hero Wars Electra Map, Electra Q&A, Electra Priority Guide, Electra’s Skill Embrace of Pain Breakdown.
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