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CR
Name
Type
Size
Alignment
Habitat
Tags
    1/4
    Oblex Spawn Legacy This doesn't reflect the latest rules and lore. Learn More Mordenkainen’s Tome of Foes
    Ooze
    Tiny
    Lawful Evil
    Swamp(…)
    5
    Obliteros Waterdeep: Dragon Heist
    Beast
    Huge
    Chaotic Evil
    Underwater
    Misc Creature
    8
    Obmi Tales from the Yawning Portal
    Humanoid (dwarf)
    Medium
    Any Non-Good Alignment
    Urban
    NPC
    8
    Obzedat Ghost Guildmasters’ Guide to Ravnica
    Undead
    Medium
    Lawful Evil
    Orzhov
    1/2
    Oceanus Ghosts of Saltmarsh
    Humanoid (elf)
    Medium
    Neutral Good
    2
    Ochre Jelly Monster Manual
    Ooze
    Large
    Unaligned
    Underdark
    2
    Ochre Jelly Legacy This doesn't reflect the latest rules and lore. Learn More Basic Rules (2014)
    Ooze
    Large
    Unaligned
    Underdark
    11
    Octon Modron Planescape: Adventures in the Multiverse
    Construct
    Large
    Typically Lawful Neutral
    0
    Octopus Monster Manual
    Beast
    Small
    Unaligned
    Underwater
    0
    Octopus Legacy This doesn't reflect the latest rules and lore. Learn More Basic Rules (2014)
    Beast
    Small
    Unaligned
    Underwater
    Misc Creature
    9
    Oculorb Phandelver and Below: The Shattered Obelisk
    Aberration
    Large
    Typically Chaotic Evil
    2
    Oddlewin The Book of Many Things
    Fey (goblinoid)
    Small
    Chaotic Neutral
    2
    Ogre Monster Manual
    Giant
    Large
    Chaotic Evil
    Arctic(…)
    2
    Ogre Legacy This doesn't reflect the latest rules and lore. Learn More Basic Rules (2014)
    Giant
    Large
    Chaotic Evil
    Arctic(…)
    4
    Ogre Battering Ram Mordenkainen Presents: Monsters of the Multiverse
    Giant
    Large
    Typically Chaotic Evil
    Grassland(…)
    4
    Ogre Battering Ram Legacy This doesn't reflect the latest rules and lore. Learn More Mordenkainen’s Tome of Foes
    Giant
    Large
    Chaotic Evil
    Grassland(…)
    2
    Ogre Bolt Launcher Mordenkainen Presents: Monsters of the Multiverse
    Giant
    Large
    Typically Chaotic Evil
    Grassland(…)
    2
    Ogre Bolt Launcher Legacy This doesn't reflect the latest rules and lore. Learn More Mordenkainen’s Tome of Foes
    Giant
    Large
    Chaotic Evil
    Grassland(…)
    3
    Ogre Chain Brute Mordenkainen Presents: Monsters of the Multiverse
    Giant
    Large
    Typically Chaotic Evil
    Grassland(…)
    3
    Ogre Chain Brute Legacy This doesn't reflect the latest rules and lore. Learn More Mordenkainen’s Tome of Foes
    Giant
    Large
    Chaotic Evil
    Grassland(…)