Petra Guide - Star Savior

Last updated: 27.03.2026

Petra

ranger SSR

birthday 21 October

Height 155cm

From Kalide

Affiliation Petra combination

CV (KR) Seonju Kim

CV (JP) Mayu Mineda

This is the profile page for Petra. In their role as a

, they utilize the

element. Explore the stat overviews and skill mechanics below to optimize your build.

Representative of Petra Union, who receives orders for anything related to construction, from demolition to construction. He has a talent for developing bombs that only blow up targets.

Basic status (Lv.)

Attack power

3,399

13th place

vitality

18,420

19th place

Defense

1,434

12th place

speed

104

5th place

Critical hit probability

9th place

Critical damage

50%

7th place

Effect hit 115%

Effect resistance 0%

Hit rate 100%

Journey Status

power 150

stamina 20

patience 20

Concentration 160

Protection 10

Resonance potential

Lv.3 Sense of concentration

The effect hit increases slightly by a certain percentage.

Lv.6 Sense of attack

Attack power increases slightly by a certain percentage.

Lv.10 Focus skills

Effect hit increases by 4%.

Pre-Construction Review Passive

Target None/Passive

Base Effect

Increases Petra's ATK by 5%.

2 Increases Petra's ATK by 5%. Grants self 1 stack of Ignition and increases self Action Gauge by 10% after an ally (excluding Petra) breaks an enemy's Toughness. Occurs once per turn.

3 Increases Petra's ATK by 10%. Grants self 1 stack of Ignition and increases self Action Gauge by 15% after an ally (excluding Petra) breaks an enemy's Toughness. Occurs once per turn.

4 Increases Petra's ATK by 15%. Grants self 1 stack of Ignition and increases self Action Gauge by 20% after an ally (excluding Petra) breaks an enemy's Toughness. Occurs once per turn.

Improvised Blueprints Basic

Target Single Enemy

Base Effect

Petra slams her blueprints down on the enemy to attack. Grants self 1 stack of Ignition.

Nova Burst Self Toughness Fixed DMG temporarily increases by 1 on attack.

2 DMG +1%

3 DMG +1%

4 DMG +1%

5 DMG +1%

6 DMG +2%

7 DMG +2%

8 DMG +2%

9 DMG +2%

10 DMG +3%

Breaking Ground Special

Target Single Enemy Cooldown 3 turn(s)

Base Effect

Petra pulls a bomb from her side bag and hurls it at the enemy. Grants self SPD Up for 2 turns, and grants self 2 stacks of Ignition.

Nova Burst Temporarily deals 2 more Toughness Fixed DMG on attack.

2 DMG +1%

3 DMG +1%

4 DMG +1%

5 DMG +1%

6 DMG +2%

7 DMG +2%

8 DMG +2%

9 DMG +2%

10 DMG +3%

Construction Negotiations Ultimate

Target Single Enemy Cooldown 5 turn(s)

Base Effect

Petra rolls out a barrage of bombs to attack the enemy. Inflicts the enemy with DEF Down for 2 turns with a 75% chance.Deals 4% increased damage for each Ignition stack, up to 5 stacks on attack, and removes all Ignition stacks after attacking.

Nova Burst Self Toughness Fixed DMG temporarily increases by 1 on attack.

2 DMG +1%

3 DMG +2%

4 DEF Down chance +10%

5 DMG +2%

6 Cooldown decreases by 1 turn(s)

7 DMG +2%

8 DEF Down chance +15%

9 DMG +3%

10 DMG +5%