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Returning 35 results for 'detect invaders are barriers'.
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deflect invaders are barriers
Monsters
Candlekeep Mysteries
ability (save DC 21) and requiring no material components:
At will: dancing lights, mage hand
3/day each: detect magic, detect thoughts, dispel magic, locate creature
1/day each: dispel evil and good
the books and scrolls kept in her subterranean domain. The Sentinel Wyrm can be summoned by the Keeper of Tomes and called upon to defend Candlekeep from invaders who would plunder or destroy it. In her
Monsters
Storm King's Thunder
spells, requiring no material components:
At will: detect magic, fog cloud, light
3/day each: feather fall, fly, misty step, telekinesis
1/day each: control weather, gaseous formMultiattack. The giant
gains a +2 bonus to its AC against ranged weapon attacks, and all open flames within the aura are extinguished unless they are magical.Some adult cloud giants have the magical ability to create barriers
Monsters
Icewind Dale: Rime of the Frostmaiden
Detect Sentience. The brain can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the creature
(spell save DC 14):
At will: detect thoughts, mage hand, zone of truth
3/day each: charm person, hold person
1/day each: compulsion, hold monster, sleep (3rd-level version), Tasha's hideous
Monsters
Tyranny of Dragons
, ray of frost
1st level (4 slots): charm person, detect magic, shield, thunderwave
2nd level (3 slots): cloud of daggers, hold person, see invisibility
3rd level (3 slots): animate dead, dispel
(Costs 2 Actions). Diderius magically unleashes negative energy. Creatures within 60 feet of him, including ones behind barriers and around corners, can’t regain hit points until the end of his next
Monsters
Mordenkainen Presents: Monsters of the Multiverse
alhoon casts one of the following spells, requiring no material components and using Intelligence as the spellcasting ability (spell save DC 16):
At will: dancing lights, detect magic, detect thoughts
that path is long and fraught with barriers. Alhoons are mind flayers who have used a shortcut to attain a lichlike state.
Elder brains forbid mind flayers from pursuing magic power aside from psionics
Monsters
Lost Laboratory of Kwalish
Detect Sentience. The brain in a jar can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the
a jar's innate spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components:
At will: detect thoughts, mage hand, zone of truth
3/day
Spells
Planescape: Adventures in the Multiverse
For the duration, you sense the presence of portals, even inactive ones, within 30 feet of yourself.
If you detect a portal in this way, you can use your action to study it. Make a DC 15 ability
can’t study that portal again using this spell until you cast it again.
The spell can penetrate most barriers but is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.
Detect Thoughts
Legacy
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Spells
Basic Rules (2014)
the target creature naturally shape the course of its thoughts, so this spell is particularly effective as part of an interrogation.
You can also use this spell to detect the presence of thinking
creatures you can’t see. When you cast the spell or as your action during the duration, you can search for thoughts within 30 feet of you. The spell can penetrate barriers, but 2 feet of rock, 2
Intellect Devourer
Legacy
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Monsters
Monster Manual (2014)
Detect Sentience. The intellect devourer can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless
Monsters
Infernal Machine Rebuild
Detect Sentience. The brain in a jar can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the
a jar's innate spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components:
At will: detect thoughts, mage hand, zone of truth
3/day
Compendium
- Sources->Dungeons & Dragons->Player's Handbook (2014)
Detect Evil and Good 1st-level divination Casting Time: 1 action Range: Self Components: V, S Duration: Concentration, up to 10 minutes For the duration, you know if there is an aberration, celestial
consecrated or desecrated. The spell can penetrate most barriers, but it is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.
Compendium
- Sources->Dungeons & Dragons->Basic Rules (2014)
Detect Magic 1st-level divination (ritual) Casting Time: 1 action Range: Self Components: V, S Duration: Concentration, up to 10 minutes For the duration, you sense the presence of magic within 30
. The spell can penetrate most barriers, but it is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.
Compendium
- Sources->Dungeons & Dragons->Player's Handbook (2014)
Detect Magic 1st-level divination (ritual) Casting Time: 1 action Range: Self Components: V, S Duration: Concentration, up to 10 minutes For the duration, you sense the presence of magic within 30
. The spell can penetrate most barriers, but it is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.
Compendium
- Sources->Dungeons & Dragons->Player's Handbook (2014)
Detect Poison and Disease 1st-level divination (ritual) Casting Time: 1 action Range: Self Components: V, S, M (a yew leaf) Duration: Concentration, up to 10 minutes For the duration, you can sense
most barriers, but it is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.
Compendium
- Sources->Dungeons & Dragons->Basic Rules (2014)
Detect Evil and Good 1st-level divination Casting Time: 1 action Range: Self Components: V, S Duration: Concentration, up to 10 minutes For the duration, you know if there is an aberration, celestial
consecrated or desecrated. The spell can penetrate most barriers, but it is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.
Compendium
- Sources->Dungeons & Dragons->Basic Rules (2014)
Detect Poison and Disease 1st-level divination (ritual) Casting Time: 1 action Range: Self Components: V, S, M (a yew leaf) Duration: Concentration, up to 10 minutes For the duration, you can sense
most barriers, but it is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.
Compendium
- Sources->Dungeons & Dragons->Infernal Machine Rebuild
)
Detect Sentience. The brain in a jar can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the
in a jar’s innate spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components:
At will: detect thoughts, mage hand, zone of truth
3
Compendium
- Sources->Dungeons & Dragons->Player's Handbook (2014)
, you can search for thoughts within 30 feet of you. The spell can penetrate barriers, but 2 feet of rock, 2 inches of any metal other than lead, or a thin sheet of lead blocks you. You can’t detect a
Detect Thoughts 2nd-level divination Casting Time: 1 action Range: Self Components: V, S, M (a copper piece) Duration: Concentration, up to 1 minute For the duration, you can read the thoughts of
Compendium
- Sources->Dungeons & Dragons->Basic Rules (2014)
, you can search for thoughts within 30 feet of you. The spell can penetrate barriers, but 2 feet of rock, 2 inches of any metal other than lead, or a thin sheet of lead blocks you. You can’t detect a
Detect Thoughts 2nd-level divination Casting Time: 1 action Range: Self Components: V, S, M (a copper piece) Duration: Concentration, up to 1 minute For the duration, you can read the thoughts of
Compendium
- Sources->Dungeons & Dragons->Dragon of Icespire Peak
now prowl Axeholm, while the banshee continues to haunt the fortress’s upper halls. The banshee senses the arrival of adventurers with its Detect Life trait. In its twisted spectral mind, they are invaders who must be destroyed for their trespass.
Compendium
- Sources->Dungeons & Dragons->Planescape: Adventures in the Multiverse->Sigil and the Outlands
leaf) Duration: Concentration, up to 1 minute For the duration, you sense the presence of portals, even inactive ones, within 30 feet of yourself. If you detect a portal in this way, you can use your
. On a failed check, you learn nothing and can’t study that portal again using this spell until you cast it again. The spell can penetrate most barriers but is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.
Compendium
- Sources->Dungeons & Dragons->Van Richten’s Guide to Ravenloft
Immunities poison
Condition Immunities exhaustion, paralyzed, poisoned, prone
Senses blindsight 120 ft. (blind beyond this radius), passive Perception 10; see also “Detect Sentience” below
Languages the languages it knew in life
Challenge 3 (700 XP) Proficiency Bonus +2
Detect Sentience. The brain can sense the presence and location of any creature within 300 feet of it that has an
Compendium
- Sources->Dungeons & Dragons->Icewind Dale: Rime of the Frostmaiden
), passive Perception 10; see also “Detect Sentience” below
Languages the languages it knew in life
Challenge 3 (700 XP) Proficiency Bonus +2
Detect Sentience. The brain can sense the presence and
location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the creature is protected by a mind blank spell.
Magic Resistance. The
Compendium
- Sources->Dungeons & Dragons->Mordenkainen's Tome of Foes
presence begins to erode the barriers between their location and the Abyss. It can take a few years for weaker demons to warp their environment, while changes begin to occur around the location of a
demon prince in about a month. To bring about these changes, the invaders must remain in the same location for some time, usually an area no more than six miles on a side, to combine their influence
Compendium
- Sources->Dungeons & Dragons->Locathah Rising
away, a detect magic spell will reveal that this area has a strong aura of both abjuration and evocation magic. Trap. When a character crosses the threshold of the bulkhead between the back and the
area. Both icy barriers have AC 12, 30 hit points each, vulnerability to fire damage, and immunity to poison and psychic damage.
Compendium
- Sources->Dungeons & Dragons->Monster Manual
Deep Speech but can’t speak; telepathy 60 ft.
CR 2 (XP 450; PB +2)
Traits
Detect Intelligence. The intellect devourer magically senses the location of any creature within 300 feet of itself that
has an Intelligence score of 3 or higher, regardless of interposing barriers.
Actions
Multiattack. The intellect devourer makes one Claw attack and uses Devour Intellect.
Claw. Melee Attack Roll
Compendium
- Sources->Dungeons & Dragons->Monster Manual (2014)
blindsight 60 ft. (blind beyond this radius), passive Perception 12
Languages understands Deep Speech but can’t speak, telepathy 60 ft.
Challenge 2 (450 XP)
Detect Sentience. The intellect devourer
can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the creature is protected by a mind blank
Compendium
- Sources->Dungeons & Dragons->Dragons of Stormwreck Isle
effectively speaking thoughts at each other. This effect doesn’t allow any creature to probe invasively into another creature’s mind. But it transcends language barriers, and you can play around with the kind
Spores When myconids take damage, they release spores that alert all other myconids within 240 feet of them. All myconids in the cave are in range of each other’s Distress Spores. Myconids in areas B2 and area B3 move to area B4 if they detect Distress Spores.
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
and shackles anchored to the floor of a dreary dungeon cell. The painting is 3½ feet wide by 7 feet tall. Thanks to a permanent Nystul’s magic aura spell cast on the painting, a detect magic spell does
vowed to serve the Mad Mage as an enforcer, ridding the dungeon of other invaders. Unwilling to face his own mortal end, Underbrew made this vow and convinced himself over time that the executions he
Compendium
- Sources->Dungeons & Dragons->Monsters of the Multiverse
alternative way to escape the permanency of death, but that path is long and fraught with barriers. Alhoons are mind flayers who have used a shortcut to attain a lich-like state. Elder brains forbid mind
components and using Intelligence as the spellcasting ability (spell save DC 16):
At will: dancing lights, detect magic, detect thoughts, disguise self, mage hand, prestidigitation
1/day each: dominate
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
. The fog swirls through this cavern, agitated by the dancing of eleven chanting minotaurs.
Offal Pile. Low stone barriers constrain a massive pile of rotting, dismembered body parts.
Altar. Behind
the search time proportionally. A detect magic spell can further expedite a specific search for magic items. The search yields a spider silk pouch containing 50 gp, two obsidian scarabs engraved with
Compendium
- Sources->Dungeons & Dragons->Tales from the Yawning Portal->a5
or ethereal creature can’t pass between zones. A detect magic spell can’t penetrate the structure of the Doomvault to sense the dimensional barriers. Magic Gates Two types of magic gates, white and
, Ooze Grottos, Predator Pools, Golem Laboratories, and Temples of Extraction. Zones are also labeled on the map. Areas are identified by numbers. Map 5.1: The Doomvault Dimensional Barriers Magic
Compendium
- Sources->Dungeons & Dragons->Lost Laboratory of Kwalish
., passive Perception 10
Languages any language it knew in life
Challenge 6 (2,300 XP)
Detect Sentience. The brain in a jar can sense the presence and location of any creature within 300 feet of it
that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the creature is protected by a mind blank spell.
Magic Resistance. The brain in a jar has advantage on saving
Compendium
- Sources->Dungeons & Dragons->Volo's Guide to Monsters
Beholder Lairs The lair of a beholder is a reflection of the creature’s mind-set — designed to anticipate, and thwart, any plan that would-be invaders might devise. Each of its chambers is isolated
barriers to gain access to the tunnel. As with the tunnels between chambers, escape tunnels are usually a steep climb or nearly vertical to make it difficult for non-flying creatures to follow. A tunnel
Compendium
- Sources->Dungeons & Dragons->Ghosts of Saltmarsh
postern entrance from the grotto, allowing the garrison to fire arrows or hurl rocks at invaders. It remains an excellent defensive position. The door from the open battlement into the corridor that
characters are moving quietly, the three snakes in area 18 detect them and slither through the arrow slits to attack. 18. Scriptorium A partial wall divides this chamber into two sections. Two arrow






