IronFist Perk Card Curve Calculator
- Duchess Flame
- 2 days ago
- 2 min read

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How to Use This Calculator
Step 1: Understand the Perk
The Iron Fist perk increases unarmed melee damage based on your Damage Resistance (DR).
The higher your DR, the more bonus damage you gain — up to +100% at 1000 DR.
Step 2: Use the Inputs
You can test how much extra damage you get for any DR value:
Damage Resistance box – type a number (for example, 500) to see the exact bonus.
Slider – drag left or right to adjust DR quickly.
As you move the slider or change the number, the bonus damage and multiplier boxes update instantly.
Bonus Damage shows your current % increase.
Damage Multiplier shows how much harder your punches hit overall.
Status lets you know if you’ve reached the 1000 DR cap.
Step 3: Review the Graph
The chart on the left plots your DR against bonus damage:
The line rises evenly from 0 to 1000 DR.
Past 1000 DR, the line flattens to show the +100% cap.
The yellow marker tracks your current DR input in real time.
Step 4: Check the Table
The table at the bottom lists DR values from 0 to 1000 in tiers of 25.
It displays both rounded and exact bonus percentages so you can see how fast damage builds as your DR climbs.

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