-
Oran-Rief, the Vastwood -
Orb of Dragonkind -
Orcish Bowmasters -
Organic Extinction -
Origin of Metalbending -
Ornithopter -
Ornithopter of Paradise -
Orzhov Cluestone -
Orzhov Locket -
Orzhov Signet -
Orzhova, the Church of Deals -
Otawara, Soaring City -
Outpost Siege -
Overgrown Tomb -
Overkill -
Overpowering Attack -
Overprotect -
Overrun -
Oversold Cemetery -
Overwhelming Stampede -
Ozolith, the Shattered Spire -
Pact of Negation -
Pact of the Serpent -
Pact Weapon
