No competitive use.
Pokémon with Illuminate
Volbeat
Staryu
Starmie
Chinchou
LanturnIlluminate
HeartGold & SoulSilver
HeartGold & SoulSilverShowing HeartGold & SoulSilver. Items may require trading, an event, or downloadable content.
VolbeatStaryuStarmieChinchouLanturnSources: PokéAPI, PKHeX game records, Pokémon Showdown and Serebii.