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Returning 35 results for 'buildings both diffusing caverns rules'.
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Monsters
Princes of the Apocalypse
Lair
Ogrémoch is normally found in the depths of elemental earth, choosing caverns with black crystals and jagged rock spikes to serve as his throne room. He can enter the Material Plane
tremors are strong enough to destroy flimsy structures. After 10 days, they are strong enough to destroy ordinary wooden buildings. After 20 days, they can seriously damage or destroy reinforced or
Monsters
Fizban's Treasury of Dragons
table to help select spells for a spellcasting dragon. (Though the Monster Manual doesn’t explicitly include dragon turtles in the variant rules for making a dragon a spellcaster, you can apply
those rules to these aquatic dragons.)
Dragon Turtle Personality Traits
d8;{"diceNotation":"1d8","rollType":"roll","rollAction":"Trait"}
Trait
1
I speak slowly and deliberately
Compendium
- Sources->Dungeons & Dragons->Lost Mine of Phandelver
terrain (see “Difficult Terrain” in the Basic Rules). Intact buildings are rundown, ramshackle stone cottages that are otherwise still standing. Their wooden doors are swollen and require a successful
three-quarters cover against attacks from the other side (see “Cover” in the Basic Rules). Dusty old furnishings such as simple wooden chairs and tables remain in most intact buildings. Trees and Brush
Compendium
- Sources->Dungeons & Dragons->Lost Mine of Phandelver
terrain (see “Difficult Terrain” in the Basic Rules). Intact buildings are rundown, ramshackle stone cottages that are otherwise still standing. Their wooden doors are swollen and require a successful
three-quarters cover against attacks from the other side (see “Cover” in the Basic Rules). Dusty old furnishings such as simple wooden chairs and tables remain in most intact buildings. Trees and Brush
Compendium
- Sources->Dungeons & Dragons->Lost Mine of Phandelver
terrain (see “Difficult Terrain” in the Basic Rules). Intact buildings are rundown, ramshackle stone cottages that are otherwise still standing. Their wooden doors are swollen and require a successful
three-quarters cover against attacks from the other side (see “Cover” in the Basic Rules). Dusty old furnishings such as simple wooden chairs and tables remain in most intact buildings. Trees and Brush
Compendium
- Sources->Dungeons & Dragons->Descent into the Lost Caverns of Tsojcanth
Using This Supplement In addition to the adventure, this supplement includes the following appendices: Appendix A presents a small trove of magic items available to all who brave the Lost Caverns of
Tsojcanth. At the DM’s discretion, the characters might earn one or more of these treasures as a reward for completing the adventure. Appendix B contains a creature that dwells in the Lost Caverns
Compendium
- Sources->Dungeons & Dragons->Descent into the Lost Caverns of Tsojcanth
Using This Supplement In addition to the adventure, this supplement includes the following appendices: Appendix A presents a small trove of magic items available to all who brave the Lost Caverns of
Tsojcanth. At the DM’s discretion, the characters might earn one or more of these treasures as a reward for completing the adventure. Appendix B contains a creature that dwells in the Lost Caverns
Compendium
- Sources->Dungeons & Dragons->Descent into the Lost Caverns of Tsojcanth
Using This Supplement In addition to the adventure, this supplement includes the following appendices: Appendix A presents a small trove of magic items available to all who brave the Lost Caverns of
Tsojcanth. At the DM’s discretion, the characters might earn one or more of these treasures as a reward for completing the adventure. Appendix B contains a creature that dwells in the Lost Caverns
Compendium
- Sources->Dungeons & Dragons->Dragons of Stormwreck Isle
Seagrow Caves Features The caves have the following features: Ceilings. Unless noted otherwise, the ceilings in the caverns are 20 feet high, and the tunnels connecting the caverns are 15 feet high
. Light. The interior caves are illuminated by bioluminescent fungi, which provide dim light throughout the area. See “Vision” in the Basic Rules. Walls. The cave walls are formed from hexagonal columns
Compendium
- Sources->Dungeons & Dragons->Dragons of Stormwreck Isle
Seagrow Caves Features The caves have the following features: Ceilings. Unless noted otherwise, the ceilings in the caverns are 20 feet high, and the tunnels connecting the caverns are 15 feet high
. Light. The interior caves are illuminated by bioluminescent fungi, which provide dim light throughout the area. See “Vision” in the Basic Rules. Walls. The cave walls are formed from hexagonal columns
Compendium
- Sources->Dungeons & Dragons->Dragons of Stormwreck Isle
Seagrow Caves Features The caves have the following features: Ceilings. Unless noted otherwise, the ceilings in the caverns are 20 feet high, and the tunnels connecting the caverns are 15 feet high
. Light. The interior caves are illuminated by bioluminescent fungi, which provide dim light throughout the area. See “Vision” in the Basic Rules. Walls. The cave walls are formed from hexagonal columns
Compendium
- Sources->Dungeons & Dragons->Out of the Abyss
Underdark Travel The Underdark is a vast network of caverns, tunnels, vaults, and passages stretching from one end of Faerûn to the other. Its physical features are even more varied than those of the
through the Underdark is handled abstractly, using the rules and advice in chapter 8, “Adventuring,” of the Player’s Handbook. The following specific guidelines apply to travel in the Underdark during this adventure.
Compendium
- Sources->Dungeons & Dragons->Out of the Abyss
Underdark Travel The Underdark is a vast network of caverns, tunnels, vaults, and passages stretching from one end of Faerûn to the other. Its physical features are even more varied than those of the
through the Underdark is handled abstractly, using the rules and advice in chapter 8, “Adventuring,” of the Player’s Handbook. The following specific guidelines apply to travel in the Underdark during this adventure.
Compendium
- Sources->Dungeons & Dragons->Out of the Abyss
Underdark Travel The Underdark is a vast network of caverns, tunnels, vaults, and passages stretching from one end of Faerûn to the other. Its physical features are even more varied than those of the
through the Underdark is handled abstractly, using the rules and advice in chapter 8, “Adventuring,” of the Player’s Handbook. The following specific guidelines apply to travel in the Underdark during this adventure.
Compendium
- Sources->Dungeons & Dragons->Out of the Abyss
domain of Araumycos is a bizarre fungal realm in the heart of the Underdark.
Light. Araumycos’s tunnels and caverns are dimly lit by phosphorescent fungi.
Terrain. Fungal life fills the caverns and
soft enough that characters can sink into it with no warning. Use the quicksand rules in chapter 5, “Adventure Environments,” of the Dungeon Master’s Guide for such areas. Creatures that fail to escape become food for Araumycos.
Compendium
- Sources->Dungeons & Dragons->Out of the Abyss
domain of Araumycos is a bizarre fungal realm in the heart of the Underdark.
Light. Araumycos’s tunnels and caverns are dimly lit by phosphorescent fungi.
Terrain. Fungal life fills the caverns and
soft enough that characters can sink into it with no warning. Use the quicksand rules in chapter 5, “Adventure Environments,” of the Dungeon Master’s Guide for such areas. Creatures that fail to escape become food for Araumycos.
Compendium
- Sources->Dungeons & Dragons->Out of the Abyss
domain of Araumycos is a bizarre fungal realm in the heart of the Underdark.
Light. Araumycos’s tunnels and caverns are dimly lit by phosphorescent fungi.
Terrain. Fungal life fills the caverns and
soft enough that characters can sink into it with no warning. Use the quicksand rules in chapter 5, “Adventure Environments,” of the Dungeon Master’s Guide for such areas. Creatures that fail to escape become food for Araumycos.
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide
highest mountains. Most visitors to the plane arrive by way of vast caverns that honeycomb the mountains. Important features of the Plane of Earth include the following: City of Jewels The plane’s largest
spires that top most buildings. The city is protected by a powerful spell that alerts the entire population if a visitor steals even a single stone. Furnaces The Furnaces are the mountains nearest the
Compendium
- Sources->Dungeons & Dragons->Monster Manual (2014)
these creatures along the shoals of faraway islands. Merfolk lack the materials and practical means to forge weapons beneath the waves, to write books and keep lore, or to shape stone to raise buildings
in vast undersea caverns, mazes of coral, the ruins of sunken cities, or structures they carve from the rocky seabed. They live in water shallow enough that the passage of time can be marked by the
Compendium
- Sources->Dungeons & Dragons->Monster Manual (2014)
these creatures along the shoals of faraway islands. Merfolk lack the materials and practical means to forge weapons beneath the waves, to write books and keep lore, or to shape stone to raise buildings
in vast undersea caverns, mazes of coral, the ruins of sunken cities, or structures they carve from the rocky seabed. They live in water shallow enough that the passage of time can be marked by the
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide
highest mountains. Most visitors to the plane arrive by way of vast caverns that honeycomb the mountains. Important features of the Plane of Earth include the following: City of Jewels The plane’s largest
spires that top most buildings. The city is protected by a powerful spell that alerts the entire population if a visitor steals even a single stone. Furnaces The Furnaces are the mountains nearest the
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide
highest mountains. Most visitors to the plane arrive by way of vast caverns that honeycomb the mountains. Important features of the Plane of Earth include the following: City of Jewels The plane’s largest
spires that top most buildings. The city is protected by a powerful spell that alerts the entire population if a visitor steals even a single stone. Furnaces The Furnaces are the mountains nearest the
Compendium
- Sources->Dungeons & Dragons->Lost Mine of Phandelver
light sources or darkvision. Stalagmites. Found in many of the natural caverns, these spires of rock rise up from the floor and can be used for cover (see “Cover” in the Basic Rules). BOOMING WAVES
noted otherwise. Rooms have 20-foot-high ceilings, while natural caverns have 30-foot-high ceilings dotted with stalactites. Doors. Unless noted otherwise, all doors are 6 feet tall, 4 feet wide, and
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
18. Serpent Gate These 10-foot-high side caverns feature a standing gate that grants access to level 11. Strikingly beautiful carvings of serpents decorate the walls of these caverns. 18a. Trapped
muck. Chiseled into the lintel stone across the top are the words “DON THE CRYSTAL CROWN” in Dwarvish. This gate’s rules are as follows: The gate opens for 1 minute if a creature wears King Melair’s
Compendium
- Sources->Dungeons & Dragons->Lost Mine of Phandelver
light sources or darkvision. Stalagmites. Found in many of the natural caverns, these spires of rock rise up from the floor and can be used for cover (see “Cover” in the Basic Rules). BOOMING WAVES
noted otherwise. Rooms have 20-foot-high ceilings, while natural caverns have 30-foot-high ceilings dotted with stalactites. Doors. Unless noted otherwise, all doors are 6 feet tall, 4 feet wide, and
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
18. Serpent Gate These 10-foot-high side caverns feature a standing gate that grants access to level 11. Strikingly beautiful carvings of serpents decorate the walls of these caverns. 18a. Trapped
muck. Chiseled into the lintel stone across the top are the words “DON THE CRYSTAL CROWN” in Dwarvish. This gate’s rules are as follows: The gate opens for 1 minute if a creature wears King Melair’s
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
18. Serpent Gate These 10-foot-high side caverns feature a standing gate that grants access to level 11. Strikingly beautiful carvings of serpents decorate the walls of these caverns. 18a. Trapped
muck. Chiseled into the lintel stone across the top are the words “DON THE CRYSTAL CROWN” in Dwarvish. This gate’s rules are as follows: The gate opens for 1 minute if a creature wears King Melair’s
Compendium
- Sources->Dungeons & Dragons->Monster Manual (2014)
these creatures along the shoals of faraway islands. Merfolk lack the materials and practical means to forge weapons beneath the waves, to write books and keep lore, or to shape stone to raise buildings
in vast undersea caverns, mazes of coral, the ruins of sunken cities, or structures they carve from the rocky seabed. They live in water shallow enough that the passage of time can be marked by the
Compendium
- Sources->Dungeons & Dragons->Lost Mine of Phandelver
light sources or darkvision. Stalagmites. Found in many of the natural caverns, these spires of rock rise up from the floor and can be used for cover (see “Cover” in the Basic Rules). BOOMING WAVES
noted otherwise. Rooms have 20-foot-high ceilings, while natural caverns have 30-foot-high ceilings dotted with stalactites. Doors. Unless noted otherwise, all doors are 6 feet tall, 4 feet wide, and
Compendium
- Sources->Dungeons & Dragons->Van Richten’s Guide to Ravenloft
Pont-a-Museau The capital of Richemulot, Pont-a-Museau straddles the Musarde River, its buildings dominating both banks and the islands and bridges between. The city’s abundant space could easily
hereditary Renier estate. From here, Jacqueline Renier rules Richemulot. She holds audience from her parlors and public courtrooms, but her private residence is sacrosanct, and few outside her family ever
Compendium
- Sources->Dungeons & Dragons->Van Richten’s Guide to Ravenloft
Pont-a-Museau The capital of Richemulot, Pont-a-Museau straddles the Musarde River, its buildings dominating both banks and the islands and bridges between. The city’s abundant space could easily
hereditary Renier estate. From here, Jacqueline Renier rules Richemulot. She holds audience from her parlors and public courtrooms, but her private residence is sacrosanct, and few outside her family ever
Compendium
- Sources->Dungeons & Dragons->Dragon Delves
aloud: Mayhem rules in the seaside village of Respite. The Cobblehook Corsairs, a crew of troublemakers who aren’t normally violent, have raided the village. Black smoke billows from buildings
Compendium
- Sources->Dungeons & Dragons->Van Richten’s Guide to Ravenloft
Pont-a-Museau The capital of Richemulot, Pont-a-Museau straddles the Musarde River, its buildings dominating both banks and the islands and bridges between. The city’s abundant space could easily
hereditary Renier estate. From here, Jacqueline Renier rules Richemulot. She holds audience from her parlors and public courtrooms, but her private residence is sacrosanct, and few outside her family ever
Compendium
- Sources->Dungeons & Dragons->Sword Coast Adventurer’s Guide
surface. A dragon dropped great stones on many of the buildings above, and a good portion of the city’s outer wall was destroyed. Most of Sundabar’s military leadership was wiped out when the building they
into the city, slaughtering the human population on the surface and driving what few defenders remained into the caverns below, and from them many fled through the Underdark. The dwarves of the
Compendium
- Sources->Dungeons & Dragons->Sword Coast Adventurer’s Guide
surface. A dragon dropped great stones on many of the buildings above, and a good portion of the city’s outer wall was destroyed. Most of Sundabar’s military leadership was wiped out when the building they
into the city, slaughtering the human population on the surface and driving what few defenders remained into the caverns below, and from them many fled through the Underdark. The dwarves of the






