Rogue Piece Rebirth Damage Calculator

How the Damage Calculator Works

The damage calculator is a wiki reference tool that explains how Rogue Piece Rebirth converts your Power stat, equipment, and temporary buffs into hit damage after the Rebirth reset. Vox's House uses a stacked multiplier model — base Power from level and stat points, sword forge tier, Race passive, Trait procs, title bonuses, and Haki aura all feed the same damage pipeline. Players who skip the math report false gear checks: they blame a Divine Bident upgrade when they forgot to press G and lost the +33.5% Haki multiplier entire boss phases.

This page documents the formula concept you apply mentally or on scratch paper during testing. It is not a live Roblox script reading your account — open it beside the controls reference when rebinding keys or comparing two sword upgrades. Cross-link PvE build guide and build planner so every multiplier in the formula matches your Spec + sword + fruit + Race + Trait combo.

Game terms — Power, Haki, Katana, Devil Fruit — stay in English to match in-game stat labels. We note post-Rebirth balance assumptions; patch notes from the official Discord may adjust percentages after QOL updates.

Power Stat Foundation

Power is the primary offensive stat displayed on your character sheet. It scales with character level, allocated stat points, Race passives like Demon Race flat bonus, and some title rewards. Sword hits, Devil Fruit skills, and Spec abilities all reference Power as their baseline before equipment modifiers apply. Investing stat points evenly into damage and health early is fine — respec costs arrive later, and under-leveled Power slows every island band from Windmill Village through Jujutsu Highschool.

Equipment adds multiplicative layers on top of base Power. A Katana provides a modest modifier suitable for levels 1–200; forged swords like Divine Bident or Kafka's Katana jump modifiers sharply and justify Fragment of Rogue farming on Glacier. When comparing two swords in the calculator, hold Power constant and swap only the sword modifier to isolate forge value. Pair with Sword tier list for expected tier ordering.

• Base Power: level scaling + stat points + Race passive.
• Sword modifier: Katana low, Divine Bident / Kafka's Katana high.
• Fruit modifier: skill-dependent; Light Fruit beams scale cleanly.
• Spec modifier: Jin Mori burst windows, Anti-Magic Sword nullify phases.

Haki +33.5% with G Key

Haki is the single most important temporary multiplier for damage testing. After purchasing Haki for 200,000 Beli from the mid-game trainer documented in the mid game walkthrough, press G on PC (or your remapped Haki button on mobile) to toggle the combat aura. While active, Haki adds +33.5% damage to sword swings, Devil Fruit skills, and Spec abilities until you toggle off or the effect ends.

Always include Haki in calculator scenarios for any content past Whispering Jungle. Example: if a raw skill hit deals 10,000 damage without Haki, the same hit with G active deals 13,350 damage before Trait procs or title bonuses — calculated as 10,000 × 1.335. Forgetting G during Thragg or Yhwach phases is the most common reason players think their build regressed after a patch. Rebind G via the controls page if it conflicts with fruit skill keys.

Title Bonuses and Achievement Layers

Titles from quests, achievements, events, and clan milestones add smaller flat or percentage bonuses that stack after base Power and equipment. A title granting +5% damage or +500 flat Power may not feel dramatic on Bandit Hill but compounds with Haki and Demon Race during long Glacier sessions. Document which titles you have active when comparing calculator snapshots — swapping titles between tests invalidates comparisons.

Event titles tied to Rebirth launch or boss kill counts sometimes expire or get replaced in patch notes. Check Rebirth event documentation for limited titles and prioritize permanent bonuses when min-maxing. Title bonuses apply to the same pipeline as Haki, meaning a +5% title multiplies alongside the +33.5% Haki layer when both are active.

Sample Damage Formula

Use this conceptual formula for estimation: Final Hit ≈ Base Power × Sword Modifier × Fruit/Spec Skill Modifier × Race Passive × Trait Proc × Title Bonus × 1.335 (if Haki active with G). Trait procs like Limit Breaker or Honored One may add conditional spikes — note proc uptime separately rather than averaging into every hit if you want conservative estimates.

Example PvE burst: 5,000 base Power, Divine Bident 1.4× modifier, Light Fruit beam 1.2× skill modifier, Demon Race 1.25× passive, no Trait proc, +5% title, Haki on. Chain: 5,000 × 1.4 × 1.2 × 1.25 × 1.05 × 1.335 ≈ 14,700 per beam before crit RNG. Example PvP opener: lower Power but Kafka's Katana finisher modifier and Blood Fruit sustain — calculate burst window only, not sustained DPS.

PvE favors sustained multiplier uptime; PvP favors peak window math. Use the build planner to pick which modifiers belong in your scenario before punching numbers.

Testing Upgrades in Game

To verify calculator estimates, pick one mob type on a fixed island — Sandora elites or Glacier trash — and record hit numbers with Haki on versus off. Change only one variable per test: new sword, new title, or Trait proc window. Server lag and boss armor values add variance, so average three hits rather than trusting one crit.

When a forge upgrade fails to move your average hit despite calculator predictions, confirm G was held active and check whether the mob level band applies damage reduction. Return to the tools hub and leveling navigator if you are testing on an island two bands above your level — under-level penalties mimic weak gear.