both bonus diffusing castle require

Cube of Summoning

Magic Items Dungeon Master’s Guide

attack bonus) and doesn’t require Concentration, but you otherwise function as the spell’s caster. Once the cube summons a creature, the cube can’t do so again until the next dawn

Ritual Caster

Feats Player’s Handbook

a maximum of 20. Ritual Spells. Choose a number of level 1 spells equal to your Proficiency Bonus that have the Ritual tag. You always have those spells prepared, and you can cast them with any spell

slots you have. The spells’ spellcasting ability is the ability increased by this feat. Whenever your Proficiency Bonus increases thereafter, you can add an additional level 1 spell with the

Crown of Horns

Magic Items Forgotten Realms: Adventures in Faerûn

effect is immune to it for 1 minute, after which it can be affected again. The aura is inactive while you have the Incapacitated condition. You can activate or deactivate the aura as a Bonus Action

urges its wearer to spread dread and destruction wherever possible. Destroying the Crown. The crown is destroyed if it is worn by Myrkul's successor, Kelemvor, while he sits on the throne of Myrkul's former realm, the Bone Castle.

Rahadin

Monsters Curse of Strahd

Deathly Choir. Any creature within 10 feet of Rahadin that isn't protected by a mind blank spell hears in its mind the screams of the thousands of people Rahadin has killed. As a bonus action

":"piercing"} piercing damage plus 5 (2d4);{"diceNotation":"2d4","rollType":"damage","rollAction":"Poisoned Dart","rollDamageType":"poison"} poison damage.Rahadin, the dusk elf chamberlain of Castle

Gremorly's Ghost

Monsters The Book of Many Things

, class features, or proficiencies. The possession lasts until the target drops to 0 hit points, Gremorly ends it as a bonus action, or Gremorly is turned or forced out by an effect like the Dispel Evil

, Prestidigitation 2/day each: Bestow Curse, Dispel Magic 1/day: SlowYears ago, a wizard named Gremorly drew the Throne card from a Deck of Many Things, gaining ownership of a small castle called Sovereign

Caradoc

Monsters Dragonlance: Shadow of the Dragon Queen

. Rejuvenation. If Caradoc dies, he reforms within Dargaard Keep in 2d6;{"diceNotation":"2d6", "rollType":"roll", "rollAction":"Days"} days. Unusual Nature. Caradoc doesn’t require air, food, drink

attack, spell, or other effect, except ones that turn Undead, and he retains his alignment, Intelligence, Wisdom, and Charisma, immunity to being charmed and frightened, and his Divisive Whispers bonus

Strahd's Animated Armor

Monsters Curse of Strahd

to fulfill simple instructions. Some animated objects might converse fluently or adopt a persona, but most are simple automatons. Constructed Nature. An animated object doesn't require air, food, drink

number of permanent spell effects on it to make the armor a better castle defender. The armor understands Common but obeys only the commands of its master. Lightning, PoisonCold, Fire

Spell Gem (Amber)

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

spell's saving throw DC is 15 and has a +9 attack bonus. You can imbue the gem with a spell if you’re attuned to it and it’s empty. To do so, you cast the spell while holding the gem. The

King Jhaeros

Monsters Keys from the Golden Vault

greater restoration spell or other magic. Haste (Recharge 5–6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Haste"}. Until the end of his next turn, Jhaeros magically gains a +2 bonus

to his AC, has advantage on Dexterity saving throws, and can use his slam attack as a bonus action.Known for its exquisite glasswork, Ghalasine was a prosperous city ruled by King Jhaeros Astolko

Strahd Zombie

Monsters Curse of Strahd

"} slashing damage.Strahd zombies are undead that serve the vampire Strahd von Zarovich. Created from the long-dead guards of Castle Ravenloft, they were called into being through dark magic by Strahd

any part damages the whole creature. Undead Nature. A Strahd zombie doesn't require air or sleep.Poison

Strahd von Zarovich

Monsters Curse of Strahd

reestablish his link to the Heart of Sorrow as a bonus action on his turn, but only while in Castle Ravenloft. The effect of the protection afforded by the Heart of Sorrow can be chilling to behold, as damage

success. Otherwise, the effect lasts 24 hours or until Strahd is destroyed, is on a different plane of existence than the target, or takes a bonus action to end the effect. Children of the Night (1

Spell Gem (Quartz)

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

saving throw DC is 13 and has a +5 attack bonus. You can imbue the gem with a spell if you’re attuned to it and it’s empty. To do so, you cast the spell while holding the gem. The spell

Spell Gem (Bloodstone)

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

spell's saving throw DC is 15 and has a +7 attack bonus. You can imbue the gem with a spell if you’re attuned to it and it’s empty. To do so, you cast the spell while holding the gem. The

Spell Gem (Jade)

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

saving throw DC is 17 and has a +9 attack bonus. You can imbue the gem with a spell if you’re attuned to it and it’s empty. To do so, you cast the spell while holding the gem. The spell is

Spell Gem (Star Ruby)

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

stored spell's saving throw DC is 18 and has a +10 attack bonus. You can imbue the gem with a spell if you’re attuned to it and it’s empty. To do so, you cast the spell while holding the gem

Spell Gem (Diamond)

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

stored spell's saving throw DC is 19 and has a +11 attack bonus. You can imbue the gem with a spell if you’re attuned to it and it’s empty. To do so, you cast the spell while holding the gem

Spell Gem (Obsidian)

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

DC is 13 and has a +5 attack bonus. You can imbue the gem with a spell if you’re attuned to it and it’s empty. To do so, you cast the spell while holding the gem. The spell is stored in

Spell Gem (Lapis Lazuli)

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

stored spell's saving throw DC is 13 and has a +5 attack bonus. You can imbue the gem with a spell if you’re attuned to it and it’s empty. To do so, you cast the spell while holding the gem

Spell Gem (Topaz)

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

spell's saving throw DC is 17 and has a +10 attack bonus. You can imbue the gem with a spell if you’re attuned to it and it’s empty. To do so, you cast the spell while holding the gem. The

Spell Gem (Ruby)

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

spell's saving throw DC is 18 and has a +10 attack bonus. You can imbue the gem with a spell if you’re attuned to it and it’s empty. To do so, you cast the spell while holding the gem. The

Spell Gem

Magic Items Out of the Abyss

an action if you know the spell or if the spell is on your class’s spell list. Doing so doesn’t require any components and doesn’t require attunement. The spell then disappears from

’s rarity and the stored spell’s saving throw DC and attack bonus, as shown in the Spell Gem table. You can imbue the gem with a spell if you’re attuned to it and it’s empty

Strahd, Master of Death House

Monsters Vecna: Eve of Ruin

teleports to his lair in Castle Ravenloft. After 1d4;{"diceNotation":"1d4", "rollType":"roll", "rollAction":"Master of the House"} hours, Strahd re-forms in a random unoccupied space within his lair

, Strahd takes 20 radiant damage at the start of his turn, has disadvantage on attack rolls and ability checks, and can’t use his Change Shape bonus action.Multiattack. Strahd makes two Death Strike

Voidwalker Armor

Magic Items The Book of Many Things

This black studded leather armor bears a red sheen. While wearing this armor, you can use a bonus action to summon a projection of yourself in an unoccupied space within 30 feet of yourself. The

. The projection disappears at the end of your turn. Once you use this bonus action, it can’t be used again until the next dawn. Curse. This armor is cursed, and attuning to it extends the

Vampire Warrior Legacy

Monsters Monster Manual (2014)

or until the vampire is destroyed, is on a different plane of existence than the target, or takes a bonus action to end the effect. Children of the Night (1/Day). The vampire magically calls 2d4

the Night"} rounds, acting as allies of the vampire and obeying its spoken commands. The beasts remain for 1 hour, until the vampire dies, or until the vampire dismisses them as a bonus action.The

Coldlight Walker

Monsters Icewind Dale: Rime of the Frostmaiden

Blinding Light. The walker sheds bright light in a 20-foot radius and dim light for an additional 20 feet. As a bonus action, the walker can target one creature in its bright light that it can see

can't be thawed, harmed by fire, animated, or raised from the dead. Unusual Nature. The walker doesn't require air, food, drink, or sleep.Multiattack. The walker makes two attacks. Slam. Melee Weapon

Sacred Statue

Monsters Mordenkainen Presents: Monsters of the Multiverse

drops to 0 hit points, the eidolon uses a bonus action to move out of the statue, or the eidolon is turned or forced out by an effect such as the dispel evil and good spell. When the eidolon leaves the

statue, it appears in an unoccupied space within 5 feet of the statue. Inert. Without an eidolon inside, the statue is an object. Unusual Nature. The statue doesn’t require air, food, drink, or

Space Eel

Monsters Spelljammer: Adventures in Space

Unusual Nature. The eel doesn’t require air.Multiattack. If it isn’t attached to a creature, the eel makes one Bite attack and one Tail Spine attack. Bite. Melee Weapon Attack: +3

","rollAction":"Bite","rollDamageType":"piercing"} piercing damage at the start of each of the eel’s turns. The eel can detach itself as a bonus action. A creature, including the target, can use

Vampire Legacy

Monsters Basic Rules (2014)

, or takes a bonus action to end the effect. Children of the Night (1/Day). The vampire magically calls 2d4;{"diceNotation":"2d4","rollType":"roll","rollAction":"Children of the Night"} swarm of bats

. The beasts remain for 1 hour, until the vampire dies, or until the vampire dismisses them as a bonus action.The vampire can take 3 legendary actions, choosing from the options below. Only one

Vampire Spellcaster Legacy

Monsters Monster Manual (2014)

vampire is destroyed, is on a different plane of existence than the target, or takes a bonus action to end the effect. Children of the Night (1/Day). The vampire magically calls 2d4;{"diceNotation":"2d4

, acting as allies of the vampire and obeying its spoken commands. The beasts remain for 1 hour, until the vampire dies, or until the vampire dismisses them as a bonus action.The vampire can take 3

Astral Elf Warrior

Monsters Spelljammer: Adventures in Space

Fey Ancestry. The elf has advantage on saving throws it makes to avoid or end the charmed condition on itself, and magic can’t put it to sleep. Unusual Nature. The elf doesn’t require

(bonus radiant)","rollDamageType":"radiant"} radiant damage. Longbow. Ranged Weapon Attack: +4;{"diceNotation":"1d20+4","rollType":"to hit","rollAction":"Longbow"} to hit, range 150/600 ft., one

Fool's Blade

Magic Items The Book of Many Things

This weapon appears ordinary, but it bears strong illusion magic that allows its wielder to skillfully deceive opponents. You have a +2 bonus to attack and damage rolls made with this magic weapon

. While wielding it, you also gain the following benefits: Fool’s Feint. As a bonus action, you can feint, choosing a creature within 5 feet of you as your target. Until the start of your next

Cadaver Collector Legacy

Monsters Mordenkainen’s Tome of Foes

Magic Resistance. The cadaver collector has advantage on saving throws against spells and other magical effects. Summon Specters (Recharges after a Short or Long Rest). As a bonus action, the cadaver

doesn't require air, food, drink, or sleep.Necrotic, Poison, Psychic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Adamantine

Feyr

Monsters Spelljammer: Adventures in Space

Unusual Nature. The feyr doesn't require air.Multiattack. The feyr makes one Frightful Bite attack and one Tentacle attack. Frightful Bite. Melee Weapon Attack: +6;{"diceNotation":"1d20+6","rollType

feyr has two tentacles, each of which can grapple one creature. Invisibility. The feyr becomes invisible until it attacks, uses Nightmare Fuel, or uses a bonus action to become visible. Nightmare

Lord Soth

Monsters Dragonlance: Shadow of the Dragon Queen

Undead. Unless Soth is incapacitated, he and Undead creatures of his choice within 60 feet of him are immune to features that turn Undead. Unusual Nature. Soth doesn’t require air, food, drink

but then rose from the ashes as an Undead horror. In his cursed castle, Dargaard Keep, Soth long ignored the ruined world, but the Dragon Queen’s summons has called his evil forth once more

Orcus Legacy

Monsters Out of the Abyss

Wand of Orcus. The wand has 7 charges, and any of its properties that require a saving throw have a save DC of 18. While holding it, Orcus can use an action to cast animate dead, blight, or speak

. Surrounded by a moat fed by the River Styx, Naratyr is an eerily quiet and cold city, its streets often empty for hours at a time. The central castle of bone has interior walls of flesh and carpets made of

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