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Structural Principle

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Structural Principle
Structural Principle sprite.png
In Other Languages
Chinese
结构性原理
Japanese
構造性原理
General Information
Code
SFR07
Type
Attack pattern
Melee
Damage
Physical
Location
Ground
Trait
  • When HP is reduced to 0, if <Mechanist, Mechanical Mind> is alive on the field, summons drones to restore HP and revives when HP is at max
First Form
  • [Reactive Defense Module] Gains increased DEF and RES when damage is taken; buff quickly degrades several seconds after the last damage is taken
  • [Focus Module] Attacks inflict additional Corrosion Damage and continuously gains ASPD when attacking the same target (capped); resets when switching targets or not attacking for a few seconds
Second Form
  • [Acceleration Module] Gradually accelerates when moving, and deals additional damage on the first attack after being blocked based upon Movement Speed
Related Enemies

The Structural Principle is a boss enemy in the Vector Breakthrough game mode of Arknights.

Enemy description
A risk assessment machine built by Mechanist. His best friend. He set twenty defensive programs to prevent Closure from meddling with it.

Overview[edit]

Ability Initial CD Cooldown

When HP is reduced to 0 and Mechanist, Mechanical Mind is present and not in the recovery state, restores 2% HP and enters the recovery state where the Structural Principle is invulnerable, neither moves nor attacks, cannot be blocked, and regenerates 5% of its maximum HP every second; when the Principle's HP is fully restored, it leaves the recovery state.

Passive

First Form

Focus Module
  • Attacks inflict Corrosion Damage equal to 40% ATK.
  • Increases ASPD by 30 after each attack against the same target, stacking additively up to 5 times, which will reset if the Structural Principle switch targets or does not attack for 6 seconds.
Only used in the First Form.

Passive

Reactive Defense Module
Increases DEF and RES by 400 and 8, respectively, when taking damage, stacking additively up to 10 times. The buffs decay at a rate of 1 stack every second if the Structural Principle does not take damage for 1 second.
Only used in the First Form.

Passive

Organically Linked Formula
While Mechanist is in the recovery state or has no Shields from Self-Defense Arts, the Structural Principle will be Stunned and lose Reactive Defense Module until the Shields are refreshed.
Only used in the First Form.

Passive

If both Mechanist and the Structural Principle are in the recovery state, reduce their HP to 0 and both revive over ~30 seconds. After the Principle revives, it enters the Second Form.
Only used at Level 1 and 2.

Second Form
  • HP and ATK increased by 100% and 25%, respectively.
  • MSPD reduced by 40%.
  • Attack interval increased by 2 seconds.
Second Form traits

Acceleration Module
While not blocked or under an effect that stops movement, increases MSPD by 50% every 0.33 seconds, stacking additively up to 30 times. The MSPD buff is reset when the Structural Principle is blocked or its movement is interrupted; in the former case, the first attack against the blocking unit deals an additional instance of Physical damage equal to (1000 × MSPD).
Only used in the Second Form.

Passive

Appearances[edit]

Vector Breakthrough VEC1-04VEC1-08VEC1-12VEC1-D

Stats[edit]

HPATKDEFRES
40000
A+
800
B+
0
E
0
E
Movement SpeedAttack IntervalElemental RESEffect Resistance
0.5
C
4
C
0
E
0
E
HPATKDEFRES
60000
A+
800
B+
0
E
0
E
Movement SpeedAttack IntervalElemental RESEffect Resistance
0.5
C
4
C
0
E
0
E
HPATKDEFRES
80000
A+
800
B+
0
E
0
E
Movement SpeedAttack IntervalElemental RESEffect Resistance
0.5
C
4
C
0
E
0
E
Attack rangeHP regenerationWeightLife Point penalty
105
SusceptibilitiesSilenceStunSleepFreezeLevitateFrightenFearParalysisLure
Additional information

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