Lucky

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For the equipment, see Lucky equipment.
 Description ? 0.5% chance per rank when hit that the damage dealt will be reduced to 1. Armour 5

Lucky is an Invention perk which has a 0.5% chance per rank when hit that the damage dealt will be reduced to 1. This perk does not stack with Saradomin or Zamorak warpriest armour. Lucky works on all damage types, including "combat" typeless. This means that it works on reflected damage and Helwyr's bleeds, but not Araxxor's cleave or Dwarven rock cake (cooled).

Lucky comes in 5 ranks, with the damage nullification chance shown below:

Activation chance
Rank Chance
1 0.5%
2 1.0%
3 1.5%
4 2.0%
5 2.5%

Given a monster's minimum $H_{min}$ and maximum hits $H_{max}$, and the rank of lucky $R$, the average damage reduction of the perk over $N$ hits can be calculated as:

$\bigg( N \times (1-0.005R) \bigg) \times \left ( \frac{H_{min}+H_{max}}{2} \right )$

SourcesEdit

MaterialRarityPerk ranks with X materials
12345
Silent componentsRare1234–55
Delicate partsCommon0011–21–2
Light componentsUncommon01–21–21–31–5
Fortunate componentsRare11–21–31–51–5