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Summoners War Janssen Dark Viking Guide

DARK VIKING
Janssen
★★
Attack
Summoners War Janssen Dark Viking Guide - Water Element
Summoners War Janssen Dark Viking Guide - Viking Water Icon
Summoners War Janssen Dark Viking Guide - Wind element 1
Summoners War Janssen Dark Viking Guide - Viking Wind Icon

Overview

Summoners War Janssen Dark Viking is a 3★ HP-based monster known for his niche but powerful utility in specific PvE team compositions, especially in BJ5 (Baleygr-Janssen-R5) and DB10 speed runs. His skills revolve around team support and revival. His first skill applies Continuous Damage with a chance, while his second skill, Crushing Armor, inflicts defense break and scales based on his current HP.

His most notable ability is Furious March, unlocked upon awakening, which revives all fallen allies and increases the Attack Bar based on how many are revived, also granting them an Attack Speed buff. This makes him particularly valuable in high-speed boss teams where a revive with an immediate action boost can recover a run. Though he has decent base stats for survivability, his usefulness is limited outside of those setups.

Janssen Stats

LevelMinLv. 25MinLv. 30MinLv. 35MinLv. 40
Normal
HP18153270262544553570606048458235
ATK114205164279223379304516
DEF128231185315252428342582
Awakened
HP258046503720633050558595688511700
ATK107192154261209355284483
DEF121218175297238404323549

Janssen, the Dark Viking, has solid base stats that support his role as a durable, utility-based support unit in Summoners War. When fully awakened at 6★ level 40, he has 11,700 HP, 483 ATK, 549 DEF, and 97 Speed. His stats scale well with each evolution stage, particularly favoring HP and DEF, which complement his skill set that relies on survivability and HP-based scaling.

Awakening also grants him a slight Speed boost (from 96 to 97), which improves his ability to act quickly, especially when using his team-reviving third skill.

His crit rate, crit damage, resistance, and accuracy remain standard across all stages, with 15% CR, 50% CDMG, 15% RES, and 0% ACC. These base stats make him a strong candidate for tanky rune builds focusing on Speed and HP, which are crucial for his utility in boss fights like BJ5 and DB10. Overall, Janssen’s stats reflect his specialized role in high-speed PvE comps, where durability and turn-cycling matter more than raw damage.

Static Attributes

SPDCRI RateCRI DMGRESACC
Unawakened9615%50%15%0%
Awakened9715%50%15%0%

How to Obtain

Temple of Wishes
Temple of Wishes
Secret Dungeon
Secret Dungeon
Light and Dark Scroll
Light and Darkness Scroll

Janssen (Dark Viking) can be obtained through several in-game summoning methods in Summoners War. Chief among these are Light & Darkness Scrolls, Secret Dungeon (Dark Viking), and the Temple of Wishes.

Additionally, he is sometimes available via the Temple of Wishes, where you can make a wish on Dark-element monsters with a chance to obtain him . While you could potentially pull Janssen from Light & Darkness Scrolls—which have a random chance to yield Dark 3★ monsters—this is less reliable due to low odds

Awakening Essence

Essence of Darkness Mid
Essence of Darkness (Mid)
Essence of Darkness Low
Essence of Darkness (Low)
Essence of Magic Low
Essence of Magic (Low)
Essence of Magic Mid
Essence of Magic (Mid)

To awaken Janssen, the Dark Viking, you’ll need the following essences:

  • 5 × Mid Darkness Essences
  • 15 × Low Darkness Essences
  • 5 × Mid Magic Essences
  • 10 × Low Magic Essences

Once gathered, these essences are consumed during the awakening process to transform Janssen from a 5★ unawakened unit into his awakened form, unlocking his powerful third skill Furious March, a slight +1 Speed bump (96→97), and boosted base stats.

Skills

Leader Skill
Leader Skill
Throwing Axe
Throwing Axe
Crushing Armor
Crushing Armor
Furious March
Awakened
Furious March
Increases the Attack Speed of ally monsters by 10%.Attacks with a flying axe and inflicts Continuous Damage for 3 turns with a 30% chance.
Multiplier: 3.7*{ATK}
Attacks the enemy and decreases the enemy’s Defence for 2 turns. The damage increases accordingly to your current HP situation. (Reusable in 4 turns)
Multiplier: {ATK}*(3.5*{Current HP %} + 4.0) )
Revives all fallen allies with little HP and increases all allies’ Attack Speed for 2 turns. Increases the allies’ Attack Bar by 30% each according to the no. of revived allies. (Reusable in 13 turns)
Damage +5%
Damage +5%
Harmful Effect Rate +10%
Harmful Effect Rate +10%
Damage +10%
Damage +10%
Harmful Effect Rate +20%
Damage +5%
Damage +10%
Damage +10%
Cooltime Turn -1
Cooltime Turn -1
Cooltime Turn -1
Cooltime Turn -1
Cooltime Turn -1
Cooltime Turn -1
Cooltime Turn -1

Rune

Build4-Set(s)2-Set(s)Stat Priorities ?
Early tank N/A Energy GuardHp, Acc
General support  Swift Focus Energy Endure NemesisSpd, Hp, Acc
Violent supporter  Violent Energy Focus Will NemesisSpd, Hp, Acc

Strategy

Summoners War Janssen Dark Viking Guide

Janssen, the Dark Viking, plays a specialized support role in Summoners War, particularly in BJ5 (Baleygr-Janssen-R5) and speed-based dungeon teams like DB10. His strategy centers around his third skill, Furious March, which revives all dead allies, increases their Attack Bar by 30% per revived unit, and grants a 2-turn Speed buff.

This makes him especially valuable in auto-farming teams that rely on fast turn cycling and recovery after AoE wipes. In BJ5 runs, he is paired with Baleygr, the main damage dealer, and support units like Fran or Loren to create a stable, high-damage composition. Janssen’s role is to ensure run consistency by reviving allies and enabling them to act immediately.

His second skill, Crushing Armor, applies a Defense Break and scales with HP, while his first skill adds DoTs, contributing to boss damage over time. Strategically, Janssen should be speed-tuned to act after the boss to make the most of his revive, especially in auto-runs. Recommended rune builds include Violent/Nemesis or Swift/Energy with SPD/HP%/HP% stats and substats focusing on Speed, HP%, DEF%, and some Accuracy.

Strength and Weakness

Summoners War Janssen Dark Viking Guide

Strength: Janssen’s main strength lies in his unique revival ability combined with an Attack Bar boost, making him a valuable asset in high-speed PvE teams where quick recovery is essential. His third skill, Furious March, can revive all fallen allies and immediately increase their Attack Bar by 30% per revived unit, allowing the team to maintain offensive momentum after devastating boss attacks. This mechanic makes Janssen especially effective in niche but popular comps like BJ5, where speed and survivability are critical.

Weakness: Janssen’s main weakness is his very niche role, limiting his usefulness outside specific PvE setups like BJ5 or speed-clear dungeon teams. He lacks consistent damage output and crowd control, making him a poor choice for general PvP or campaign content. His revival skill has a long cooldown, so it can’t be relied on frequently, and if he’s not speed-tuned properly, the revive may come too early or too late, wasting its potential.

Synergy

Janssen shines most when paired with monsters that can capitalize on his revival and Attack Bar boost to maximize damage output immediately after being brought back to life. His best synergy is with Baleygr (Fire Lightning Emperor) in the popular BJ5 team, where Baleygr acts as the main damage dealer and Janssen ensures the team can quickly recover from boss AoE wipes by reviving and boosting their turn order. Additionally,

Janssen pairs well with buffer units like Fran or Loren, who provide immunity, healing, or defense buffs to keep the team alive longer. Damage dealers with strong AoE skills such as Lushen or Zeratu benefit greatly from Janssen’s Attack Bar push since it allows them to chain powerful attacks right after revival. Support monsters that can apply defense breaks or further debuffs complement Janssen’s own defense break on skill 2, increasing overall damage. In general, Janssen synergizes best in compositions focused on fast turn cycling and survivability in PvE content like dungeons, Rift of Worlds, or Guild Battles where his revive can turn the tide of the fight.

Frequently Asked Questions (F.A.Q)

Is Janssen worth building?

Janssen is worth building if you run speed-based PvE teams like BJ5 or DB10 where his revive and Attack Bar boost can improve clear consistency. Outside these niche comps, he’s less useful due to his long cooldowns and limited damage.

What rune sets work best on Janssen?

Violent/Nemesis or Swift/Energy are popular choices. Focus on Speed as the main stat, then HP% and HP% for survivability and skill scaling. Substats should prioritize Speed, HP%, Defense%, and some Accuracy for defense breaks.

Can Janssen be used in PvP?

Not really. His kit is designed for PvE support with a long cooldown revive, making him ineffective in PvP where faster, more versatile monsters dominate.

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