Summoners War Sisroo Water Harpu Guide

WATER HARPU

Sisroo

★★

SUPPORT

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Overview

Summoners War Sisroo Water Harpu is a 2★ support monster known for her multi-hit skills and useful debuffs like Attack Break, Heal Block, and AoE Slow. She excels in early-game content, especially Necropolis, due to her triple-hit attacks that trigger dungeon mechanics effectively. While her damage and survivability are low, her utility makes her a solid crowd-control option. Best runed with Despair/Focus or Violent sets focusing on Speed and Accuracy, Summoners War Sisroo Water Harpu is a niche but valuable pick for beginners.

Sisroo Stats

At max level (6★ and awakened), Sisroo has base stats of 7,245 HP, 582 Attack, 582 Defense, and 106 Speed. Her critical rate is 15%, with 50% critical damage, 0% accuracy, and 15% resistance. These stats highlight her role as a utility support monster, focusing on debuffs and multi-hit attacks rather than raw damage or durability. With relatively high speed and a debuff-heavy kit, she’s effective for crowd control and dungeon support, though her low survivability limits her use in more challenging content.

Static Attributes

How to Obtain Sisroo

Unknown Scroll

Social Summon

Temple of Wishes

Magic Shop

Mt. White Ragon

You can obtain Sisroo, the Water Harpu, through several accessible methods:

She’s a Naturally Occurring 2★ monster that can be summoned from Unknown Scrolls, the Magic Shop, and Social Summons, making her relatively easy to pull from general summoning pools

Social Summons, making her relatively easy to pull from general summoning pools. Additionally, she occasionally appears in the Secret Dungeon for the Harpu family, which unlocks when the corresponding Hall of Water is cleared—requiring 20 pieces to summon her. She’s also available from Mt. White Ragon (a reward tower summon)

In summary, your best options are:

• Pull via Unknown Scrolls, Magic Shop, or Social Summons
• Farm and summon her in the Harpu Secret Dungeon (20 pieces)
• Summon from Mt. White Ragon

This makes Sisroo quite beginner-friendly, especially if you’re farming the Harpu Secret Dungeon during a Water Hall unlock.

Awakening Essence

Essence of Water (Low)

Essence of Water (Mid)

Essence of Magic (Low)

Essence of Magic (Mid)

To awaken Sisroo (the Water Harpu), you’ll need the following essences:

• 5 × Essence of Water (Mid)
• 15 × Essence of Water (Low)
• 5 × Essence of Magic (Mid)
• 10 × Essence of Magic (Low)

These elemental and magic essences are obtained from Cairos dungeons:

• Essence of Water drops in the Hall of Water
• Essence of Magic drops in the Hall of Magic (open every day)

For efficient farming, aim for B9–B10 stages where mid-tier essences are more common. You can also fuse lower-tier essences into mids in the Fuse Center. Minor farming tips from players note that “getting a grand total of 2 high essences in 30 runs is just sad,” so expect some grind

SKILL UPS

All skills need to be maxed to level 7. Overall, Sisroo requires 14 skill-up points, which can be obtained by feeding either Harpu family units or using Devilmons (though it’s more efficient to feed same-family fodder)

• Use other Harpu family monsters (same-star and above) as fodder—feeding Water, Fire, Wind, Light, or Dark Harpu shares experience thanks to shared skill family.
• Alternatively, Devilmons can be used for a guaranteed skill-up on any skill (not recommended for low-rarity units).
• Take advantage of skill-up events and tickets, which occasionally allow free or discounted skill-up chances

Sisroo needs 14 skill-up points to max out her skills, with the majority coming from feeding same-family Harpu monsters. Fully skilled, she gains significant bonus damage, better debuff rates, and reduced cooldowns—ideal for maximizing her utility in dungeons and crowd control.

Skills

Blackout Kick	Deadly Dart	Frozen Field (Awakened)
Performs a ruthless combo, kicking the enemy 2 times. Each attack has a 50% chance of decreasing the enemy’s Attack Power for 2 turn. Multiplier: 1.9*{ATK} x2	Throws sharp feathers to attack the enemy 3 times and prevents them from recovering their HP for 2 turns. (Reusable in 4 turns). Multiplier: 1.9*{ATK} x3	Attacks all enemies 3 times with an arctic frost. Each attack has a 50% chance to decrease the target’s Attack Speed for 2 turns. (Reusable in 5 turns) Multiplier: 1.4*{ATK} x3
Damage +5% Harmful Effect Rate +5% Damage +5% Harmful Effect Rate +5% Damage +10% Harmful Effect Rate +5%	Damage +5% Damage +10% Damage +10% Cooltime down -1	Damage +10% Damage +10% Damage +10% Cooltime Turn -1

SECOND AWAKENING SKILLS

Blackout Kick (Awakened)	Deadly Dart (Awakened)	Frozen Field (Awakened)
Attacks the enemy 2 times to decrease Attack Power for 2 turns with a 70% chance each. Multiplier: 2.2*{ATK} x2	Attacks the enemy 3 times. Each hit disturbs HP recovery for 2 turns and has a 30% chance to freeze for 1 turn. (Reusable in 3 turns). Multiplier: 2.25*{ATK} x3	Attacks all enemies 3 times. Each hit has a 40% chance to remove 1 beneficial effect and a 40% chance to decrease Attack Speed for 2 turns. Afterwards, absorbs the Attack Bar of the enemies with decreased Attack Speed by 20% each. (Reusable in 4 turns). Multiplier: 1.65*{ATK} x3
Damage +15% Effect Rate +20%	Damage +10% Damage +10%	Damage +15%

Rune

Build	4-Set(s)	2-Set(s)	Stat Priorities ?
Early tank	N/A	Energy Guard	Hp, Def
General support	Swift	Energy  Endure  Focus Nemesis	Spd, Hp, Acc
Violent supporter	Violent	Focus  Will Nemesis  Endure	Spd, Hp, Acc

Strategy

Necropolis Dungeon
Sisroo is highly effective in the Necropolis dungeon due to her multi-hit skill set, which is essential for breaking the boss’s shield. Her first and third skills hit three times, making her an excellent choice for teams focused on rapid shield removal. In addition to her hit count, she brings useful debuffs like Attack Break and Slow, which help reduce the boss’s damage output and control turn cycles. Pairing her with other multi-hit monsters ensures smoother runs and faster boss phase transitions.

Trial of Ascension (ToA)
In Trial of Ascension, Sisroo shines as a crowd-control support thanks to her AoE third skill, Frozen Field, which applies Slow to all enemies. This debuff is critical for managing enemy speed and turn advantage, allowing your team to control the battlefield more effectively. When equipped with Despair runes, her multi-hit AoE has a solid chance to stun, further locking down enemy waves. She pairs well with other control-type monsters, especially those with stuns or turn manipulation.

Rune Build Strategy
The best rune sets for Sisroo are Despair + Focus or Violent + Energy, depending on whether you prioritize control or sustained uptime of debuffs. Core stats to focus on are Speed (slot 2), HP% or ATK% (slot 4), and Accuracy% (slot 6). She needs to act early in combat to land her debuffs before the enemy moves, so building for speed is crucial. Aiming for at least 55% Accuracy in PvE will help ensure consistent debuff application, especially against dungeon bosses and ToA enemies.

Support Utility
Although Sisroo doesn’t provide healing or cleansing, she contributes as a valuable support through her consistent debuff application. Her Attack Break reduces enemy damage, while Heal Block can counter sustain-heavy teams. Slow debuffs extend your team’s control window, allowing damage dealers more time to act safely. These qualities make her a flexible pick in teams that need additional utility but can’t spare a slot for dedicated support.

Fodder Farming & Skill-up Efficiency
Sisroo can also assist in low to mid-level dungeon farming due to her fast animations and AoE damage potential. She becomes even more efficient when fully skilled up, reducing cooldowns and increasing debuff reliability. Fortunately, she can be skilled up using other Harpu family monsters, which are easy to obtain, allowing players to save Devilmons for higher-tier units. This makes her a budget-friendly option for progressing in early PvE content.

Strength and Weakness

Strengths
Sisroo excels in providing multi-hit attacks and consistent crowd-control debuffs, making her ideal for dungeons like Necropolis and modes such as Trial of Ascension. Her triple-hit skills allow her to trigger key dungeon mechanics, such as shield breaking in Necro. She also brings valuable debuffs like Attack Break, Heal Block, and AoE Slow, which can control enemy movements and reduce incoming damage. Her relatively high base Speed (106) helps her act early in fights, especially when paired with Despair runes, giving her a strong chance to stun enemies and further disrupt opponents. She’s also easily accessible as a 2★ monster and easy to skill up using other Harpu units.

Weaknesses
Despite her utility, Sisroo suffers from low base stats, especially in HP and Defense, making her quite fragile and prone to being quickly eliminated in tougher fights. Her damage output is modest, even when fully skilled, which limits her effectiveness outside of a support role. She also becomes less useful in late-game PvE and PvP, where more specialized or tankier support monsters outperform her. Additionally, her reliance on Accuracy and Speed means she’s heavily rune-dependent to function well, which can be a challenge for newer players with limited rune quality.

Synergy

Sisroo works best in teams that benefit from multi-hit mechanics, debuff layering, and turn control. She pairs especially well with monsters used in Necropolis runs, such as Colleen, Adrian, or Shaina, who also offer multi-hit skills and additional debuffs like Defense Break or ATB reduction. This kind of synergy ensures smoother boss shield removal and more efficient damage windows.

In Trial of Ascension, Sisroo synergizes with control-based monsters like Spectra, Baretta, or Verdehile, where her AoE Slow complements ATB manipulation and crowd control. With Despair runes, her AoE skill has stun potential, increasing her value in ToA-style lockdown teams.

Support units like Fran or Belladeon also make strong partners, helping keep Sisroo alive while she applies her debuffs. Since Sisroo doesn’t heal or cleanse, she fits best in teams that provide her with sustain and protection, allowing her to do what she does best: control the fight through well-timed, multi-hit debuffs.

Frequently Asked Questions (F.A.Q)