This is Season 6 content. The oldest global servers opened in June 2026, and as of October 2026 none has reached Season 6 yet.
Serena, the Watcher is an Exotic Mage hero of the Brotherhood faction in Wild Water World. Invokes fallen spirits to shield allies. Heals, revives, and supports.
- Rarity
- Exotic
- Class
- Mage
- Faction
- Brotherhood
- Season
- 6
- Exclusive Weapon
- Rotten Codex
Hero guide
| Role | S6 top support, combines self-sustain (healing, DMG reduction, revival), DMG tanking, DMG amplification, and late-game comeback potential |
|---|---|
| How to get | Source: S6 Day 6 Limited-Time Lucky Spin Event |
| Star Up | Usable as a stable Primary Team pick at 4-Star — reaches peak performance as the top pick for Summoner Builds at 6-Star. |
| Skill | Skill 1 → Skill 4 → Skill 2 → Skill 3 |
| Badge | Skill Power, DMG Reduction, HP, Crit RES |
| Gear | Armor: Shield Suit Firearm: Grenade Launcher Blade: Plasma Greatsword; prioritize Skill Power and DMG Reduction, with balanced HP and Crit RES as supplements |
| Core | Windstorm, RES Shred, RES, Crit RES, Armor Shred, Armor |
Skills
| Skill | Max level | Effect |
|---|---|---|
| Soul Summoning Circle | 5 | Lv. 1: Serena briefly chants to deploy a Soul Summoning Circle lasting 6 seconds. Allied heroes within the circle take 20% less DMG and DMG dealt increased by 4%. Lv. 2: Serena briefly chants to deploy a Soul Summoning Circle lasting 6 seconds. Allied heroes within the circle take 20% less DMG and DMG dealt increased by 8%. Lv. 3: Serena briefly chants to deploy a Soul Summoning Circle lasting 6 seconds. Allied heroes within the circle take 20% less DMG and DMG dealt increased by 12%. Lv. 4: Serena briefly chants to deploy a Soul Summoning Circle lasting 6 seconds. Allied heroes within the circle take 20% less DMG and DMG dealt increased by 16%. Lv. 5: Serena briefly chants to deploy a Soul Summoning Circle lasting 6 seconds. Allied heroes within the circle take 20% less DMG and DMG dealt increased by 20%. |
| Skill Power Increase | 5 | Increases Skill Power by 10% / 20% / 30% / 40% / 50% and HP by 9% / 13% / 17% / 21% / 25%. (Lv. 1–5) |
| DMG Reduction Increase | 5 | Increases Skill Power by 7% / 14% / 21% / 28% / 35% and reduces DMG Reduction by 4% / 8% / 12% / 16% / 20%. (Lv. 1–5) |
| Soul Summoning Circle Boost | 5 | At the start of battle, applies Undead Blessing to all allied heroes: heroes with this effect have a 30% chance to generate a Lost Soul when they fall. Additionally, within the Soul Summoning Circle, allied heroes below 50% HP recover HP equal to 5% / 10% / 15% / 20% / 25% of Serena's Skill Power per second. Lost Soul: A melee summon whose stats scale with Serena's development. Taunts surrounding enemies upon appearance and deals Energy DMG equal to 5% of its max HP to each surrounding enemy upon death. Lost Souls exist for a maximum of 8 seconds. (Lv. 1–5) |
Base stats
Base is the hero's starting value before levels, gear, badges and other bonuses. Per level is the hero's growth: the game's own formula for showing a hero at a level is base + growth × (level − 1). The hero screen shows the stats the server sends, with every bonus counted. Growth is also what the Exclusive Weapon's stat points are multiplied by.
| Stat | Base | Per level |
|---|---|---|
| HP | 4166.2 | +208.31 |
| ATK | 207.4 | +10.37 |
| Skill Power | 414.8 | +20.74 |
| Armor | 148 | — |
| RES | 333 | — |
| ATK Speed | 0.6 | — |
| ATK Range | 4 | — |
| Max Energy | 70 | — |
| Starting Energy | 30 | — |
Star-up Fragments
| Star | Fragments | Total Fragments | Max skill levels |
|---|---|---|---|
| 1★ | 1 | 1 | 1 |
| 2★ | 1 | 2 | 1 |
| 3★ | 2 | 4 | 1 |
| 4★ | 2 | 6 | 1 |
| 5★ | 4 | 10 | 2 / 2 |
| 6★ | 5 | 15 | 2 / 2 |
| 7★ | 5 | 20 | 2 / 2 |
| 8★ | 5 | 25 | 2 / 2 |
| 9★ | 10 | 35 | 2 / 2 |
| 10★ | 15 | 50 | 3 / 3 / 3 |
| 11★ | 20 | 70 | 3 / 3 / 3 |
| 12★ | 20 | 90 | 3 / 3 / 3 |
| 13★ | 20 | 110 | 3 / 3 / 3 |
| 14★ | 20 | 130 | 3 / 3 / 3 |
| 15★ | 50 | 180 | 4 / 4 / 4 / 4 |
| 16★ | 50 | 230 | 4 / 4 / 4 / 4 |
| 17★ | 50 | 280 | 4 / 4 / 4 / 4 |
| 18★ | 50 | 330 | 4 / 4 / 4 / 4 |
| 19★ | 50 | 380 | 4 / 4 / 4 / 4 |
| 20★ | 120 | 500 | 5 / 5 / 5 / 5 |
| 21★ | 120 | 620 | 5 / 5 / 5 / 5 |
| 22★ | 120 | 740 | 5 / 5 / 5 / 5 |
| 23★ | 120 | 860 | 5 / 5 / 5 / 5 |
| 24★ | 120 | 980 | 5 / 5 / 5 / 5 |
| 25★ | 120 | 1100 | 5 / 5 / 5 / 5 |
Exclusive Weapon: Rotten Codex
Forged once Serena, the Watcher reaches 15★. It adds HP 10,415, ATK 518 and Skill Power 1,037 at Lv. 1, and HP 1,562,325, ATK 77,775 and Skill Power 155,550 at Lv. 100 with 25 stars. Level and star costs: Exclusive Weapons.
| Skill | Max level | Effect |
|---|---|---|
| Spirit Heal | 4 | When allied ranged heroes die within the Soul Summoning Circle, there's a(n) 20% / 30% / 40% / 50% chance to revive and recover 30% HP (each hero can trigger this once per battle). (Lv. 1–4) |
| Lament | 4 | Soul Summoning Circle duration increases by 1 / 2 / 3 / 4 second. (Lv. 1–4) |
| Soul Sacrifice | 4 | Serena takes no more than 30% of her Max HP from a single instance of DMG taken. Upon death, immediately casts Soul Summoning Circle again. Additionally, Undead Blessing trigger chance increases to 50% / 60% / 70% / 80%. (Lv. 1–4) |