RKS System (Ability)

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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.

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.

Role Play, Gastro Acid, Worry Seed, Simple Beam, and Entrainment fail if the target has the Ability RKS System. Skill Swap fails if either Pokémon has RKS System. RKS System cannot be copied by Trace, Power of Alchemy, or Receiver. RKS System cannot be replaced by Mummy or suppressed by Core Enforcer. 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
Silvally Silvally
Normal Normal RKS System None None
Please note that this is only 100% accurate to Generation VIII games.
  • For Generation III games, ignore Abilities introduced in Generation IV or later and Hidden Abilities.
  • For Generation IV games, ignore Hidden Abilities.
  • For Generation V games, ignore Abilities introduced in Generation VI or later.
  • For Generation VI games, ignore Abilities introduced in Generation VII or later.
  • For Generation VII games, ignore Abilities introduced in Generation VIII or later.

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:

Type Weakness
NormalIC Masters.png Normal MastersIcon773.png FightingIC Masters.png Fighting
FightingIC Masters.png Fighting MastersIcon773Fighting.png FairyIC Masters.png Fairy
FlyingIC Masters.png Flying MastersIcon773Flying.png RockIC Masters.png Rock
PoisonIC Masters.png Poison MastersIcon773Poison.png PsychicIC Masters.png Psychic
GroundIC Masters.png Ground MastersIcon773Ground.png IceIC Masters.png Ice
RockIC Masters.png Rock MastersIcon773Rock.png GrassIC Masters.png Grass
BugIC Masters.png Bug MastersIcon773Bug.png FlyingIC Masters.png Flying
GhostIC Masters.png Ghost MastersIcon773Ghost.png DarkIC Masters.png Dark
SteelIC Masters.png Steel MastersIcon773Steel.png FireIC Masters.png Fire
FireIC Masters.png Fire MastersIcon773Fire.png WaterIC Masters.png Water
WaterIC Masters.png Water MastersIcon773Water.png ElectricIC Masters.png Electric
GrassIC Masters.png Grass MastersIcon773Grass.png PoisonIC Masters.png Poison
ElectricIC Masters.png Electric MastersIcon773Electric.png GroundIC Masters.png Ground
PsychicIC Masters.png Psychic MastersIcon773Psychic.png GhostIC Masters.png Ghost
IceIC Masters.png Ice MastersIcon773Ice.png FightingIC Masters.png Fighting
DragonIC Masters.png Dragon MastersIcon773Dragon.png DragonIC Masters.png Dragon
DarkIC Masters.png Dark MastersIcon773Dark.png BugIC Masters.png Bug
FairyIC Masters.png Fairy MastersIcon773Fairy.png SteelIC Masters.png Steel

In the anime

Gladion Silvally RKS System Rock.png Gladion Silvally RKS System.png Gladion Silvally RKS System Dark.png Gladion Silvally RKS System Steel.png
Rock-type Installing a memory Changing to Dark-type Steel-type
The Pokémon changes its type to match the inserted memory disc.
Pokémon Method
User First Used In Notes
Silvally Silvally 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


  • 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
France Flag.png French Système Alpha
Germany Flag.png German Alpha-System
Italy Flag.png Italian Sistema Primevo
South Korea Flag.png Korean AR시스템 AR System
Russia Flag.png Russian Система RKS Sistema RKS
Spain Flag.png Spanish Sistema Alfa

Variations of the Ability Multitype
MultitypeRKS System

Project Moves and Abilities logo.png 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.