Aventurine Skills, Traces & Eidolons

Honkai: Star Rail
Last Updated: on Jun 20, 2025 at 10:00

Introductions

Aventurine is a 5★ character with the Imaginary element who follows the Path of Preservation.
A high-ranking executive of the IPC's Strategic Investment Department.
A risk-taker, his constant smile makes it difficult for people to discern his true feelings.

Aventurine's Strengths & Weaknesses

Strengths
Best Shield Unit in the Game and best Sustain Unit for Follow-up Teams.
Can be very Trailblaze Power Efficient for Gearing.
Very SP Positive.
Can resist Crowd Control debuffs and grants Effect RES to allies.
Weaknesses
Has no way to heal units if damage bypasses his Shield.
Ultimate is random for stacks granted and the debuff is Single Target only.

Skills

Basic ATK
Straight Bet
Single Target
Lv. 6
Energy gain: 20
Break: Main: 10.0
Deals Imaginary DMG equal to 100% of Aventurine's DEF to a single target enemy.
Skill
Cornerstone Deluxe
Defensive
Lv. 10
Energy gain: 30
Provides all allies with a Fortified Wager shield that can block DMG equal to 24.0% of Aventurine's DEF plus 320, lasting for 3 turn(s). When Fortified Wager is gained repeatedly, the Shield Effect can stack, up to 200% of the current Shield Effect provided by the Skill.
Ultimate
Roulette Shark
Single Target | 110 energy cost
Lv. 10
Energy gain: 5
Break: Main: 30.0
Randomly gains 1 to 7 points of Blind Bet. Then, inflicts Unnerved on a single target enemy for 3 turn(s) and deals Imaginary DMG equal to 270.0% of Aventurine's DEF to the single target enemy. When an ally hits an Unnerved enemy target, the CRIT DMG dealt increases by 15.0%.
Talent
Shot Loaded Right
Bounce
Lv. 10
Energy gain: 1
Break: Main: 3.3
For any single ally with Fortified Wager, their Effect RES increases by 50.0%, and when they get attacked, Aventurine gains 1 point of Blind Bet. When Aventurine has Fortified Wager, he can resist Crowd Control debuffs. This effect can trigger again after 2 turn(s). Aventurine additionally gains 1 point(s) of Blind Bet after getting attacked. Upon reaching 7 points of Blind Bet, Aventurine consumes the 7 points to launch a 7-hit Follow-up ATK, with each hit dealing Imaginary DMG equal to 25.0% of Aventurine's DEF to a single random enemy. Blind Bet is capped at 10 points.
Technique
The Red or the Black
Defensive
Energy gain: -
After using the Technique, 1 of the following effects will be granted:
There is a chance for DEF to increase by 24.0%.
There is a high chance for DEF to increase by 36.0%.
There is a small chance for DEF to increase by 60.0%.

When this Technique is used repeatedly, the acquired effect with the highest buff value is retained.
When the next battle starts, increases all allies' DEF by the corresponding value, lasting for 3 turn(s).

Major Traces

Leverage
A2
Major trace
For every 100 of Aventurine's DEF that exceeds 1600, increases his own CRIT Rate by 2.0%, up to a maximum increase of 48.0%.
Hot Hand
A4
Major trace
When battle starts, grants all allies a Fortified Wager shield, whose Shield Effect is equal to 100% of the one provided by the Skill, lasting for 3 turn(s).
Bingo!
A6
Major trace
After a teammate with Fortified Wager launches Follow-up ATK, Aventurine accumulates 1 Blind Bet point. This effect can trigger up to 3 time(s). Its trigger count resets at the start of Aventurine's turn. After Aventurine launches his Talent's Follow-up ATK, provides all ally targets with a Fortified Wager that can block DMG equal to 7.2% of Aventurine's DEF plus 96, and additionally grants a Fortified Wager that can block DMG equal to 7.2% of Aventurine's DEF plus 96 to the ally with the lowest Shield Effect, lasting for 3 turns.

Minor Traces

DEF
+35.0%
Imaginary DMG Boost
+14.4%
Effect Resistance
+10.0%

Eidolons

E1
Prisoner's Dilemma
Eidolon 1
Increases CRIT DMG by 20.0% for ally targets with Fortified Wager. After using the Ultimate, provides all allies with a Fortified Wager shield, whose Shield Effect is equal to 100% of the one provided by the Skill, lasting for 3 turn(s).
E2
Bounded Rationality
Eidolon 2
When using the Basic ATK, reduces the target's All-Type RES by 12.0% for 3 turn(s).
E3
Droprate Maxing
Eidolon 3
Ultimate Lv. +2, up to a maximum of Lv. 15.
Basic ATK Lv. +1, up to a maximum of Lv. 10.
E4
Unexpected Hanging Paradox
Eidolon 4
When triggering his Talent's Follow-up ATK, first increases Aventurine's DEF by 40.0% for 2 turn(s), and additionally increases the Hits Per Action for his talent's Follow-up ATK by 3.
E5
Ambiguity Aversion
Eidolon 5
Skill Lv. +2, up to a maximum of Lv. 15.
Talent Lv. +2, up to a maximum of Lv. 15.
E6
Stag Hunt Game
Eidolon 6
For every teammate that holds a Shield, the DMG dealt by Aventurine increases by 50.0%, up to a maximum of 150.0%.

Stats and Ascension Materials

Lv. 1
Base Stats
HP
164
ATK
61
DEF
89
SPD
106
Ascension Materials
Credits
308000
Tatters of Thought
15
Fragments of Impression
15
Suppressing Edict
65
Shards of Desires
15

Aventurine Voice Actors

EN
Camden Sutkowski
JP
Kawanishi Kengo
CN
Yang Chaoran
KR
Park Jun-won
Saeldur
Staff Author
Follow Saeldur

This guide was written by Saeldur.

1.

Changelog

  • 20 Jun. 2025: Page and Skills for Aventurine added.
Show more
Show less