Star Rail Relic Optimizer

Relic Stat Optimizer

Input your relic’s base stats and desired main stat to calculate the optimal substat distribution for maximizing its power.

Relic Substat Value Ranges

Standard 5-Star Relic Substat Ranges

Substat Type	Min Roll Value	Max Roll Value	Roll Count
CRIT Rate	2.7%	3.9%	4
CRIT DMG	5.4%	7.8%	4
ATK%	4.3%	6.5%	4
SPD	3	6	4
ER	3.9%	5.8%	4
Break Effect	5.8%	8.7%	4
HP%	5.4%	8.1%	4
DEF%	6.5%	9.8%	4
HP	27-31	37-42	4
ATK	13-15	18-21	4
DEF	16-18	22-26	4

Note: Roll counts and exact values can vary slightly. Values shown are typical for 5-star relics.

Substat Roll Distribution Example

Example distribution of substat rolls across different types.

What is a Star Rail Relic Optimizer?

A Star Rail Relic Optimizer is a specialized tool designed for players of the game Honkai: Star Rail. Its primary function is to help players maximize the effectiveness of their character builds by analyzing and suggesting the best possible substat distributions for their relics. Relics are crucial pieces of equipment that provide significant stat boosts, and their substats can drastically alter a character’s performance. This optimizer takes into account the relic’s main stat, slot, and the number of upgrades applied to estimate the potential value derived from its substats, guiding players towards statistically superior gear.

Who should use it:

• Min-Maxing Players: Those who aim to push their characters to the absolute peak of their potential.
• Newer Players: To understand which substats are generally more valuable and how relic upgrades work.
• Theorycrafters: Players who enjoy experimenting with different builds and understanding stat breakpoints.
• Anyone Frustrated with RNG: To get a clearer picture of what a “good” relic looks like, even if the RNG rolls aren’t perfect.

Common Misconceptions:

• It guarantees perfect rolls: The optimizer provides an estimate based on typical roll values, not a prediction of your specific RNG outcomes.
• All substats are equally important: The tool allows you to prioritize stats, acknowledging that different characters need different things.
• It replaces understanding character needs: While it optimizes substats, you still need to know what your character requires (e.g., Crit Rate vs. Crit DMG, Speed breakpoints).
• It’s only for DPS characters: Support and Tank characters also benefit immensely from optimized stats like Speed, EHR, DEF%, and HP%.

Star Rail Relic Optimizer Formula and Mathematical Explanation

The core of a Star Rail Relic Optimizer involves quantifying the “value” of substats. Since the game’s mechanics are complex and different stats serve different purposes, a direct numerical formula to determine absolute “best” is challenging. Instead, we use a weighted scoring system based on user-defined priorities.

Step-by-step derivation:

1. Identify Potential Rolls: A relic can have up to 4 initial substats and gains an additional substat upgrade at levels 4, 7, 10, and 13. Each upgrade adds a value based on a roll range (e.g., a Crit Rate roll can add 2.7% to 3.9%).
2. Assign Weights: Based on user input (Desired Substat 1, 2, 3, 4), we assign a weight to each potential substat. For example:
   • Desired Substat 1: Weight 4
   • Desired Substat 2: Weight 3
   • Desired Substat 3: Weight 2
   • Desired Substat 4: Weight 1
   • Other Substats: Weight 0
3. Estimate Average Roll Value: For each substat type, determine an average value it might gain per roll. This is often approximated as the midpoint between the minimum and maximum roll values.
4. Calculate Weighted Score: For each possible substat on the relic, multiply its average roll value by its assigned weight.
5. Sum Scores: Sum the weighted scores for all substats on the relic. This provides a single “score” representing its overall potential value based on your priorities.
6. Estimate Total Value: The calculator estimates the total value by considering the number of rolls and their potential contribution. A common approach is:

   Estimated Total Value = (Sum of [Average Roll Value * Weight] for each substat) * Number of Rolls

   A more refined version might consider the probability distribution of rolls.

Variables Table:

Variable	Meaning	Unit	Typical Range (5-Star Relic)
Main Stat Type	The primary stat on the relic (e.g., ATK%, CRIT Rate).	String	ATK, HP, DEF, CRIT Rate, CRIT DMG, SPD, ER, Break Effect, DMG Boost, Effect Hit Rate
Main Stat Value	The numerical value of the main stat.	Percentage or Flat Value	e.g., 432 (ATK), 58.3% (CRIT Rate), 21.6% (SPD)
Base Substats	Number of substats present at +0.	Integer	1 to 4
Total Rolls	Total number of substat upgrades applied.	Integer	0 to (Base Substats + 4 – 1) if started with 1 substat, up to Base Substats + 4 if all rolls are used
Desired Substat (1-4)	User’s prioritized substat types.	String	CRIT Rate, CRIT DMG, ATK%, SPD, etc.
Weight	Numerical value assigned based on priority level.	Integer	e.g., 4 (Highest) down to 0
Average Roll Value	Estimated average numerical gain per substat roll.	Percentage or Flat Value	e.g., 3.3% (CRIT Rate), 6.6% (CRIT DMG), 4.5 (SPD)
Estimated Total Value	A combined score representing the relic’s potential efficiency based on priorities.	Score Units	Varies greatly based on rolls and priorities.
Substat Roll Count	Number of times a specific substat has been upgraded.	Integer	0 to Total Rolls

Practical Examples (Real-World Use Cases)

Let’s consider two common scenarios for optimizing relics using the calculator:

Example 1: Optimizing a DPS Character’s Chest Piece

Character Goal: Maximize damage output for Seele (Quantum DPS).

Relic Details: Body piece (Chest), Main Stat: CRIT DMG, Value: 65.3%

Relic Condition: Started with 4 substats, upgraded 5 times (Total Rolls = 5).

Desired Substats:

1. 1st Priority: CRIT Rate
2. 2nd Priority: CRIT DMG
3. 3rd Priority: ATK%
4. 4th Priority: Speed

Calculator Inputs:

• Relic Slot: Body
• Main Stat: CRIT DMG
• Main Stat Value: 65.3
• Base Substats: 4
• Total Rolls: 5
• Desired Substat 1: CRIT Rate
• Desired Substat 2: CRIT DMG
• Desired Substat 3: ATK%
• Desired Substat 4: Speed

Hypothetical Calculator Output:

• Highlighted Result: Estimated Total Value: 95.2
• Primary Substat Rolls (CRIT Rate): 2 rolls (approx. +7.8%)
• Secondary Substat Rolls (CRIT DMG): 2 rolls (approx. +15.6%)
• Tertiary Substat Rolls (ATK%): 1 roll (approx. +6.5%)
• Quaternary Substat Rolls (Speed): 0 rolls

Interpretation: This output suggests the relic has received a good distribution of rolls favoring CRIT stats, with decent ATK%. The absence of Speed rolls might be acceptable if Seele already has enough from other sources or if pure damage is the absolute priority. A score of 95.2 (on a hypothetical scale) indicates a strong piece.

Example 2: Optimizing a Support Character’s Boots

Character Goal: Maximize utility for Bronya (Support).

Relic Details: Feet piece (Boots), Main Stat: Speed, Value: 43

Relic Condition: Started with 3 substats, upgraded 4 times (Total Rolls = 4).

Desired Substats:

1. 1st Priority: Speed
2. 2nd Priority: ATK%
3. 3rd Priority: CRIT Rate
4. 4th Priority: ER

Calculator Inputs:

• Relic Slot: Feet
• Main Stat: Speed
• Main Stat Value: 43
• Base Substats: 3
• Total Rolls: 4
• Desired Substat 1: Speed
• Desired Substat 2: ATK%
• Desired Substat 3: CRIT Rate
• Desired Substat 4: ER

Hypothetical Calculator Output:

• Highlighted Result: Estimated Total Value: 88.5
• Primary Substat Rolls (Speed): 2 rolls (approx. +10)
• Secondary Substat Rolls (ATK%): 1 roll (approx. +6.5%)
• Tertiary Substat Rolls (CRIT Rate): 1 roll (approx. +3.9%)
• Quaternary Substat Rolls (ER): 0 rolls

Interpretation: This relic is excellent for a fast support like Bronya. It has gained two Speed rolls, bringing the total Speed significantly higher. The other rolls are also desirable, providing some ATK% and CRIT Rate, which can indirectly benefit Bronya’s Skill Point generation and damage. A score of 88.5 indicates a very valuable piece for its intended purpose.

How to Use This Star Rail Relic Optimizer Calculator

Using the Star Rail Relic Optimizer is straightforward. Follow these steps to get the most out of your relic farming:

1. Select Relic Slot: Choose the type of relic you are analyzing (Head, Hands, Body, Feet, Planar Ornament, Link Rope). This helps contextualize the main stat values.
2. Input Main Stat Details: Enter the specific Main Stat (e.g., “CRIT DMG”) and its exact numerical Value for the relic you’re examining. Remember that percentage stats are usually written as whole numbers (e.g., 58.3 for 58.3%).
3. Specify Substat Information:
• Base Substats: Indicate how many substats the relic had when it was first obtained (before any level +3, +6, +9, +12 upgrades). This is usually 1, 2, 3, or 4.
• Total Substat Rolls: Count how many times the relic’s stats have been upgraded through leveling. Each upgrade adds a new roll to one of the existing substats or adds a new substat if there were fewer than 4 initially.
4. Prioritize Your Substats: This is the most crucial step for personalization. Use the dropdown menus to select your desired substats in order of importance (1st Priority being the most desired, down to 4th).
5. Click “Optimize Relic”: Once all fields are filled, press the button. The calculator will process the information.

How to Read Results:

• Highlighted Result (Estimated Total Value): This is a composite score representing the relic’s overall potential based on your priorities and typical roll values. A higher score generally indicates a better relic for your specific needs.
• Substat Rolls Breakdown: This shows how many rolls are estimated to have gone into each of your prioritized substats. It helps you quickly see if the relic is heavily invested in your desired stats.
• Key Assumptions: Always review these to understand the limitations of the calculation.

Decision-Making Guidance: Use the results to decide whether a relic is worth keeping, upgrading further, or using as fodder. A high score on a piece with desirable substats strongly suggests keeping and potentially investing more upgrade materials. Conversely, a low score might indicate it’s time to let the relic go.

Key Factors That Affect Star Rail Relic Optimizer Results

While the calculator aims to provide an objective assessment, several factors influence the outcome and interpretation of its results:

1. Character’s Base Stats and Scaling: A character with naturally high ATK might benefit more from CRIT stats than flat ATK%. Similarly, characters who rely on specific stats (like EHR for debuffers) will have different priorities. The optimizer doesn’t know the character’s base stats directly but relies on your chosen priorities.
2. Role and Team Synergy: A Speed main stat on boots might be the top priority for a hyper-speed support like Bronya, while a DPS character might prefer ATK% or CRIT DMG. Team composition can also influence needs; if the team lacks buffs, ATK% might become more valuable.
3. Substat Roll Distribution (RNG): The calculator uses average roll values. In reality, you might get multiple “high rolls” on one stat and only “low rolls” on another. This calculator estimates potential, not guaranteed outcomes. A truly exceptional relic might exceed the calculated “total value” due to lucky high rolls.
4. Gear Set Bonuses: Certain relic sets provide powerful bonuses (e.g., 4-piece Quantum set reducing DEF). The optimizer focuses purely on substat value and doesn’t directly factor in how set bonuses interact with stats.
5. Target Stat Breakpoints: Many characters have critical stat breakpoints (e.g., 100% CRIT Rate, 134 Speed for Outdoor Sprint). The optimizer helps achieve these, but achieving them might require prioritizing specific stats over others, even if they aren’t your absolute highest preference.
6. Relic Level and Upgrade Count: The number of total rolls directly impacts the potential value. A relic with more rolls has a higher ceiling for improvement, making its substat distribution even more critical.
7. Main Stat Type vs. Substat Type: Having CRIT Rate as a main stat on a body piece is less common than CRIT DMG. The optimizer helps evaluate pieces where the main stat is already fixed, allowing focus on substat optimization.
8. Flat Stats vs. Percentage Stats: Generally, percentage-based stats scale better on characters with higher base stats (usually at higher levels). Flat stats are more impactful on characters with lower base stats. The priority system allows you to reflect this preference.

Frequently Asked Questions (FAQ)

Q1: What are the best substats for a DPS character?

Generally, CRIT Rate, CRIT DMG, ATK%, and Speed are top priorities. The exact order depends on the specific character and their kit. Some DPS might need Effect Hit Rate if they have debuffs.

Q2: What about support characters? What should I prioritize?

For supports, Speed is often the highest priority to ensure they act frequently. Other valuable stats include EHR (for debuffers), HP%, DEF%, and sometimes ER (Energy Regen Rate) depending on their ultimate’s cost and impact. ATK% can also be beneficial for supports who deal significant damage or have ATK-scaling buffs.

Q3: How does the “Total Rolls” work?

A relic starts with a certain number of substats (1-4). At levels +3, +6, +9, and +12, it gains an upgrade. If the relic had fewer than 4 substats initially, a new substat is added at one of these levels. Otherwise, an existing substat is upgraded. “Total Rolls” is the sum of all these upgrade instances.

Q4: My relic has great rolls, but the calculator gives it a low score. Why?

This likely means the rolls went into substats you didn’t prioritize (marked as Weight 0 or low weight). The score reflects *your* desired build, not just raw stat potential. You might consider adjusting your priorities or accepting that the relic is better suited for a different character.

Q5: Can this calculator predict the exact stats after upgrading?

No. The calculator uses average roll values. The actual outcome of upgrades is determined by Honkai: Star Rail’s random number generator (RNG). This tool helps estimate potential and compare relics based on typical values.

Q6: Should I prioritize flat stats (like +27 ATK) or percentage stats (like +4.3% ATK)?

Generally, percentage stats scale better, especially on characters with high base stats (often at level 80). Flat stats are more impactful on characters with low base stats or when trying to reach specific low thresholds. Most endgame builds favor percentage stats.

Q7: What is the difference between ‘ER’ and ‘Energy Regen Rate’?

They are the same stat in Honkai: Star Rail, often abbreviated as ER. It increases the rate at which a character gains energy to use their Ultimate ability.

Q8: How do I handle relics with multiple desirable substats but no Speed?

This is common! Use the calculator to see how valuable the other stats are. If the combined value of CRIT stats and ATK% is high enough, you might still use the relic, especially if you can compensate for Speed via other characters’ relics (like boots) or Light Cones.

Q9: What does “Break Effect” do?

Break Effect increases the damage dealt when breaking an enemy’s weakness. It’s a key stat for characters focused on breaking toughness bars and dealing follow-up damage or applying DoTs based on break effects.