Professor Oak’s Setup

Cosmic Eclipse · #201

Professor Oak’s Setup

Cosmic Eclipse · #233

Professor Oak's Hint

Evolutions · #84

Professor Oak's New Theory

Call of Legends · #83

Professor Oak's New Theory

HeartGold SoulSilver · #101

Professor Oak's Visit

Arceus · #90

Professor Oak's Visit

Secret Wonders · #122

Professor Oak's Research

Dragon Frontiers · #80

Professor Oak's Research

Expedition Base Set · #149

Professor Oak

Base Set 2 · #116

Professor Oak

Base Set · #88

Professor's Research (Professor Oak)

Celebrations · #23

Professor's Research (Professor Oak)

Celebrations · #24

Impostor Professor Oak's Invention

Neo Destiny · #94

Impostor Professor Oak

Base Set 2 · #102

Impostor Professor Oak

Base Set · #73