Oppression (LIST-USG-143) - The List
Opt (LIST-DOM-60) - The List
Opulent Palace (LIST-KTK-238) - The List
Oracle of Nectars (LIST-SHM-233) - The List
Orc Sureshot (LIST-FRF-78) - The List
Orcish Artillery (LIST-10E-220) - The List
Order of Yawgmoth (LIST-DDE-11) - The List
Orim's Chant (LIST-PLS-11) - The List
Ornithopter (LIST-M15-223) - The List