Thornmail (MV Plugin Tips & Tricks)

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The Thornmail is a unique piece of armor in League of Legends. It inflicts recoil damage to anyone who physically attacks its user. This kind of effect can be recreated in RPG Maker MV along with the bonus damage effect involving the wearer’s DEF value.

Required Plugins

The following plugin(s) is required to create this Tips & Tricks effect:

For help on how to install plugins, click here.

For help on how to update plugins, click here.


This is a Tips & Tricks effect created for RPG Maker MV. Tips & Tricks are not to be confused with plugins. Instead, they are usually customized code created for the sake of producing unique features/effects that do not require an entire plugin to do.

Yanfly Engine Plugins

This Tips & Tricks effect is made possible due to the Yanfly Engine Plugins library.

Click here if you want to help support Team Yanfly on Patreon.

Warning for RPG Maker MZ Users


If you are using RPG Maker MZ and VisuStella MZ, the following code may or MAY NOT work as this Tips & Tricks is made for RPG Maker MV. VisuStella MZ is NOT responsible if this Tips & Trick does not work because the code base for RPG Maker MV and RPG Maker MZ are different and the code base between Yanfly Engine Plugins and VisuStella MZ is even more drastically different.


Follow video instructions.

Copy and paste into a state notebox:

<Custom React Effect>
// Check to see if any physical damage is dealt.
if (value > 0 && this.isPhysical()) {
  // Sets the Recoil Rate to 15%.
  var rate = 0.15;
  // Determines the amount of recoil damage dealt.
  var recoil = value * rate;
  // Sets the DEF bonus rate to 25%.
  var rate = 0.25;
  // Determines the amount of bonus damage dealt.
  var bonus = target.def * rate;
  // Rounds up the bonus damage and recoil damage.
  var dmg = Math.ceil(bonus + recoil);
  // Makes the attacker lose damage equal to the dmg variable.
  user.gainHp(-1 * dmg);
  // Check to see if the attacker is dead.
  if (user.isDead()) {
    // If the attacker is dead, make it collapse.
</Custom React Effect>