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Seven Knights Idle Adventure

Awakened Surtr - Surtr the Last Giant

Surtr the Last Giant

Ranged Type

Seven Demon Lords

Legendary+
April 2, 2026

Unlock reward : 250Rubies icon- Seven Knights Idle Adventure

Hero Surtr the Last Giant portrait - Seven Knights Idle Adventure

Skills

Range : 60CD : 0Atk speed : 149

Deals damage equal to 300% of Attack to the target.

Range : 60CD : 0Atk speed : 149

Deals Critical Hit Damage equal to 1650% of Attack to the target. If the caster is affected by Doomsday Guide, replaces Critical Hit attacks with Doomsday Strike.

Doomsday Strike

Consumes 3% of the caster's Max HP and deals damage equal to 1650% of Attack in a 3m area around the target. Inflicts the Advent of Calamity debuff for 2 sec and makes the target Tense upon a successful attack. Doomsday Strike ignores the Critical Hit Rate Resist of the hit target.

Advent of Calamity

Decreases final Defense by 75%. Deals Burn damage equal to 150% of Attack every 0.2 sec. Deals Corrosion damage equal to 150% of Attack every 0.2 sec.

Tense

Unable to attack or move, and skills become unavailable for a short time

Range : 180CD : 20Atk speed : 149

Grants the Veil buff and the Last Giant buff to the caster for 20 sec. When remaining HP is above 50%, Surtr obtains the Doomsday Guide buff.

Veil

Nullifies damage taken 15 time(s).

Last Giant

Increases final Attack by 75%. Increases final Critical Hit Damage by 36%. Increases final Bonus Damage by 36%. Increases final Weakness Attack damage by 36%. Cannot use skills for the duration of the buff. This effect cannot be removed with Buff Removal.

Doomsday Guide

Increases the effect of Last Giant by 2 times. This effect cannot be removed with Buff Removal.

Stats

Stats at level 1
StatsValueStatsValue
HP456829Attack100950
Defense30594Critical rate31.84%
Hit1121Critical factor150%
Dodge1121Attack speed149
Health regen13052Move speed40
Critical rate resist0%Lethal rate0%
Reduction rate0%Extra damage rate0%
Vital point rate0%Lethal factor150%
Extra damage factor150%Vital point factor130%

The king of the giants, a mighty race known to be stronger than any other in the celestial realm. The giants, whose presence alone was enough to produce scalding heat, had been marked as a threat by the Valkyries for ages. Such was the sentiment that Freyja began her persecution against them the moment she formed the Celestial Guardians. Believing himself to be the most powerful being in the universe, Surtr immediately joined the Seven Demon Lords to fight the Valkyries, but his resistance ultimately ended in defeat. Consequently, the giants' innate ability to generate heat was exploited to power the celestial realm, and Surtr spent eons in humiliation. ...And that's how Surtr lost his vigor and woke up as a pretty little lass. This... is me? Elke? Are we still doing this?

Surtr the Last Giant Guide

Quick Overview
Tier S
Role DPS Debuffer
Best Modes
Boss Farm PvP
Investment Priority Very High
Verdict
Must pull
Strength

Exceptional burst DPS with powerful debuffs

Weakness

Requires careful HP management to maintain peak performance

Surtr the Last Giant is one of the strongest burst DPS heroes in Seven Knights Idle Adventure, excelling in both PvE and PvP content. His explosive damage output and rare debuffs make him a top-tier threat in any game mode.

What sets Surtr apart is his ability to enable powerful team compositions through unique mechanics that were previously locked behind limited or collaboration heroes. His main drawback is that he requires careful HP management, as dropping below certain thresholds can significantly reduce his effectiveness.

Should You Use Surtr?

Yes — Surtr is a must-pull hero. He provides exceptional burst damage, rare debuffs and strong survivability, making him one of the best investments in the game.

Surtr the last giant first place on the dps meter in Nightmare mode - Seven Knights Idle Adventure

First place in Nightmare on the dps meter.

Strengths

Top-tier burst DPS — Doomsday Strike delivers massive AOE damage while ignoring Crit Rate Resist.
Corrosion access without collab — unlocks powerful team synergies previously restricted to limited heroes.
-75% Defense debuff — one of the strongest damage amplification tools available.
Exceptional survivability — 15-stack Veil makes him hard to kill in both PvE and PvP.
Crit Rate Resist ignore — Doomsday Strike completely ignores the target's Critical Hit Rate Resist, meaning no investment in Crit Rate is needed to land critical hits consistently.

Weaknesses

HP management required — dropping below 50% HP disables his core damage mechanic.

Best Game Modes

  • PvE — top-tier in all content thanks to burst and debuffs
  • PvP — high survivability and AOE on critical make him a strong pick

Build & Optimization

Focus on maximizing Crit Damage and Attack, as Surtr does not require Crit Rate investment due to his ability to ignore Crit Rate Resist. Pair him with a strong healer to maintain optimal HP thresholds.

Investment Advice

Early game
Top-tier investment
Mid game
Top-tier investment
Late game
Top-tier investment

FAQ

Is Surtr worth pulling?

Yes, he is one of the best DPS units currently available.

Does the fact that his active skill doesn't deal damage hurt him?

Not at all — his active skill is actually one of his biggest strengths. Even without dealing direct damage, the buffs it provides make his Critical Hit devastating. On top of that, his active is an AOE with a 1650% multiplier, one of the highest in the game.

Is the Corrosion DoT rare?

Yes, very rare. Only one other hero — Heir to the Hidden Palace Siris — has access to it, making Surtr one of only two heroes who can apply this powerful debuff.

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