DMG (damage) reduction refers to the amount of DMG that can be reduced relative to the target's max HP. Here in this example, the targeting is receiving 100 DMG. The target can reduce 25% of that damage. However, if that 25% of DMG is higher than 30% of the target's max HP (as indicated by damage_reduction_limit), it will max at that amount. The…

damage_reduction.js

const damage = 100;

const hp = 15_000;

const damage_reduction = .25;
const damage_reduction_limit = hp * .3;

const damage_reduced = Math.min(damage * damage_reduction, damage_reduction_limit);
const incoming_damage = Math.max(1, damage - damage_reduced);

console.log(incoming_damage);