@EventHandler
    public void onEntityDamageByEntityEvent(EntityDamageByEntityEvent e) {
        // Nerf des potions de force 1 à 50%
        // Ancien coeff : Double coef1 = (0.50d*1.3d+1d)/(1.3d+1d);
        if (e.getDamager() instanceof Player) {
            Player p = (Player) e.getDamager();
            if (p.hasPotionEffect(PotionEffectType.INCREASE_DAMAGE)) {
                for (PotionEffect ef : p.getActivePotionEffects()) {
                    if (ef.getType().equals(PotionEffectType.INCREASE_DAMAGE)) {

                        int level = ef.getAmplifier() + 1;

                        double newDamage = e.getDamage(EntityDamageEvent.DamageModifier.BASE) / (level * 1.3D + 1.0D) + 4 * level;
                        double damagePercent = newDamage / e.getDamage(EntityDamageEvent.DamageModifier.BASE);

                        try {
                            e.setDamage(EntityDamageEvent.DamageModifier.ARMOR, e.getDamage(EntityDamageEvent.DamageModifier.ARMOR) * damagePercent);
                        } catch (Exception localException) {

                        }
                        try {
                            e.setDamage(EntityDamageEvent.DamageModifier.MAGIC, e.getDamage(EntityDamageEvent.DamageModifier.MAGIC) * damagePercent);
                        } catch (Exception localException1) {

                        }
                        try {
                            e.setDamage(EntityDamageEvent.DamageModifier.RESISTANCE, e.getDamage(EntityDamageEvent.DamageModifier.RESISTANCE) * damagePercent);
                        } catch (Exception localException2) {

                        }
                        try {
                            e.setDamage(EntityDamageEvent.DamageModifier.BLOCKING, e.getDamage(EntityDamageEvent.DamageModifier.BLOCKING) * damagePercent);
                        } catch (Exception localException3) {

                        }

                        e.setDamage(EntityDamageEvent.DamageModifier.BASE, newDamage);
                        break;
                    }
                }
            }
        }
    }