baseDamage = item attack damage + player attack damage(1)
function calculateStrengthDamage(player, baseDamage) {
const strengthEffect = player.getEffect("strength");
if (!strengthEffect) return baseDamage;
const strengthLevel = strengthEffect.amplifier + 1;
const multiplier = Math.pow(1.3, strengthLevel);
return (baseDamage * multiplier) + ((multiplier - 1) / 0.3);
}