Oath of the Arknight (Yellow) - ARC092 - Unlimited Normal
Obelisk the Tormentor (Ultra Rare) - EGO1-EN001 - Unlimited
Obelisk the Tormentor (Ultra Rare) - YGLD-ENG02
Obi-Wan Kenobi - Protective Padawan (Foil Special) - 598
Obliterate!!! (Ultra Rare) - LDK2-ENY03
Obnoxious Celtic Guard (Common) - LCYW-EN036
Oboro-Guruma, The Wheeled Mayakashi (Secret Rare) - HISU-EN032
Obscura Initiate (Foil) (Common) - 050/281
Ocean Dragon Lord - Kairyu-Shin (Ultra Rare) - LED9-EN017
Octillery (Reverse Holo Common) - 23/111
Odd-Eyes Meteorburst Dragon (Super Rare) - PEVO-EN032
Odd-Eyes Pendulum Dragon (Quarter Century Secret Rare) - TN23-EN011 - Limited Edition
Odd-Eyes Pendulumgraph Dragon (Ultra Rare) - MP23-EN079
Odd-Eyes Phantasma Dragon (Secret Rare) - BLCR-EN075
Odd-Eyes Rebellion Dragon (Secret Rare) - MP16-EN078
Odd-Eyes Rebellion Dragon Overlord (Ultra Rare) - GFP2-EN004
Oddish - 001/190 - Japanese
Ode to Wrath (Rare) - MON013 - Unlimited Normal
Ode to Wrath (Rare) - PSM015
Offender at Large (Common) - 138
Offensive Behavior (Rare) - SUP070
Offering to the Snake Deity (Rare) - ANGU-EN060
Ogdoabyss, the Ogdoadic Overlord (Ultra Rare) - ANGU-EN009
Ogdoadic Calling (Rare) - ANGU-EN013
Ogdoadic Hollow (Rare) - ANGU-EN012
Ogdoadic Origin (Rare) - ANGU-EN011
Oggdo Bogdo - Bogano Brute (Rare) - 63/264
Oh F!sh! (Rare) - GENF-EN069
Oinkologne ex (Double Rare) - 158/198
Ojama Country (Ultra Rare) - GFTP-EN110
Ojama Green (Common) - DCR-EN056
Okidogi ex (Double Rare) - 036/064
