RKS System (Ability)

RKS System ARシステム
AR System
Flavor text
Generation VII
Changes the Pokémon's type to match the memory disc it holds.
Generation VIII
Changes the Pokémon's type to match the memory disc it holds.
Generation IX
Changes the Pokémon's type to match the memory disc it holds.

RKS System (Japanese: ARシステム AR System) is an Ability introduced in Generation VII. It is the signature Ability of Silvally.


In battle

RKS System changes the type of the Pokémon with this Ability depending on the memory attached.

Gastro Acid, Worry Seed, and Simple Beam fail if the target has the Ability RKS System. Role Play, Skill Swap, Entrainment, and Doodle fail if either Pokémon has RKS System. RKS System cannot be copied by Trace, Power of Alchemy, or Receiver, replaced by Mummy or Lingering Aroma, suppressed by Core Enforcer or Neutralizing Gas, or traded by Wandering Spirit. If a Pokémon other than Silvally obtains RKS System with Imposter or Transform, the Pokémon will copy the form of the target Silvally regardless of its own held item.

Outside of battle

RKS System has no effect outside of battle.

Pokémon with RKS System

# Pokémon Types First Ability Second Ability Hidden Ability
0773   Silvally
Normal Normal RKS System None None
Please note that abilities marked with a superscript are only available in the stated generation or later.
  • For Generation III and IV games, ignore Hidden Abilities.

In other games

Pokemon Masters EX

RKS System has been reworked into a skill-independent game mechanic that only Gladion and Silvally use. They can use their unique Trainer move once per battle to change Silvally's type, the type of their Multi-Attack, and the type of their and sync move into that of their targeted opponent's weakness. This also changes Gladion and Silvally's weakness type. After the battle, they return to their Normal typing.

Silvally's forms

Here is a table of all Silvally's possible types and their corresponding weaknesses:

In the anime

Installing a memory
Changing to Dark-type
The Pokémon changes its type to match the inserted memory disc.
Pokémon Method
User First Used In Notes
  Silvally installs a memory disc into the drive located on the side of its head. It then changes its type to the corresponding type on the disc.
Gladion's Silvally Mission: Total Recall! Debut

In the manga

Pokémon Adventures


Icon for RKS Laboratories
  • The name of this Ability is a reference to Arceus, with its English name being similar to the pronunciation of "Arceus". In German, Spanish, French, and Italian, its name is instead a reference to Arceus's category, the Alpha Pokémon.
    • The company RKS Laboratories (Japanese: アルセウス製薬 Arceus Pharma) in Galar has a logo similar to the rings on Arceus's body, furthering the connection.

In other languages

Language Title
Chinese Cantonese AR系統 AR Haihtúng
Mandarin AR系統 / AR系统 AR Xìtǒng
  French Système Alpha
  German Alpha-System
  Italian Sistema Primevo
  Korean AR시스템 AR System
  Russian Система RKS Sistema RKS
  Spanish Sistema Alfa

Variations of the Ability Multitype
MultitypeRKS System

  This article is part of Project Moves and Abilities, a Bulbapedia project that aims to write comprehensive articles on two related aspects of the Pokémon games.