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


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RKS System allows Silvally to change its type based on which Memory Disc it is holding. The Memory Disc also changes the type of Silvally's signature move, Multi Attack, to match its current typing.


Gladion's Silvally


  • The name RKS System is a reference to Arceus, of which Silvally is a man-made copy of.
    • R-K-S is based on one pronunciation of "Arceus", as its English name variant, as it has also been pronounced "Ar-kee-us", "Ar-kay-us", or sometimes "Ar-see-us".
    • The Japanese name, AR System, references the latter pronunciation, however (ARsys), as that is the Japanese pronunciation of Arceus.
  • RKS System works similar to Multitype, however holding a Memory does not give a 20% boost to moves of that type, unlike Arceus' plates.
  • Unlike Arceus who can change its type while holding a Z-Crystal, Silvally does not and can only be a Normal-type when using a Z-move.

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