both both deciding creature refuses

Moonblade

Magic Items Dungeon Master’s Guide

cause the Moonblade to flash brightly. Each other creature that is within 30 feet of you and not behind Total Cover must succeed on a DC 15 Constitution saving throw or have the Blinded condition for 1

minute. A creature repeats the save at the end of each of its turns, ending the effect on itself on a success. You can’t use this property again until you finish a Short or Long Rest. 96-99

Treasure Rat

Equipment

carried by another creature. They continue pointing their nose at that item for 1 minute or until you shut the cage door. After pointing at a magic item, the rat refuses to do so again until they consume a piece of cheese worth at least 10 gp.

Mirror Shade

Monsters Vecna: Eve of Ruin

False Appearance. If the mirror shade is within 5 feet of a reflective surface—such as a mirror, glass pane, or still water—it has advantage on its initiative roll. If a creature hasn

’t observed the mirror shade move or act, that creature must succeed on a DC 18 Intelligence (Investigation) check to discern that the mirror shade isn’t the creature’s own reflection

Gynosphinx Legacy

Monsters Basic Rules (2014)

Inscrutable. The sphinx is immune to any effect that would sense its emotions or read its thoughts, as well as any divination spell that it refuses. Wisdom (Insight) checks made to ascertain the

finishes a short or long rest: The flow of time is altered such that every creature in the lair must reroll initiative. The sphinx can choose not to reroll. The effects of time are altered such

Sphinx of Judgment

Monsters Guildmasters’ Guide to Ravnica

Inscrutable. The sphinx is immune to any effect that would sense its emotions or read its thoughts, as well as any divination spell that it refuses. Wisdom (Insight) checks made to ascertain the

finishes a short or long rest: The flow of time is altered such that every creature in the lair must reroll initiative. The sphinx can choose not to reroll. The effects of time are altered such that

Androsphinx Legacy

Monsters Basic Rules (2014)

Inscrutable. The sphinx is immune to any effect that would sense its emotions or read its thoughts, as well as any divination spell that it refuses. Wisdom (Insight) checks made to ascertain the

long rest, the roar is louder and the effect is different, as detailed below. Each creature within 500 feet of the sphinx and able to hear the roar must make a saving throw. First Roar. Each creature

Isperia

Monsters Guildmasters’ Guide to Ravnica

. Isperia is immune to any effect that would sense her emotions or read her thoughts, as well as any divination spell that she refuses. Wisdom (Insight) checks made to ascertain her intentions or

, clairvoyance, counterspell, dispel magic, tongues 4th level (3 slots): divination, locate creature 5th level (2 slots): dispel evil and good, scrying 6th level (1 slot): word of recall 7th level (1

Enhanced Sphinx

Monsters Lost Laboratory of Kwalish

Inscrutable. The sphinx is immune to any effect that would sense its emotions or read its thoughts, as well as any divination spell that it refuses. Wisdom (Insight) checks made to ascertain the

following magical effects; the sphinx can’t use an effect again until it finishes a short or long rest: The flow of time is altered such that every creature in the lair must reroll initiative

Elkhorn

Monsters The Wild Beyond the Witchlight

"} piercing damage. If the target is a creature that is Large or bigger, it takes an extra 5 (1d10);{"diceNotation":"1d10","rollType":"damage","rollAction":"Dagger","rollDamageType":"piercing

"} slashing damage when used with two hands. If the target is a creature that is Large or bigger, it takes an extra 5 (1d10);{"diceNotation":"1d10","rollType":"damage","rollAction":"+1 Longsword

Draconic Shard

Monsters Fizban's Treasury of Dragons

object. The shard can cause the object to fly using the shard’s own flying speed, use its senses, speak verbally or telepathically, cast spells, and use its legendary actions. If a creature

wears or carries the inhabited object, the shard can grant the creature the following benefits: Each of the creature’s attacks deals an extra 1d8;{"diceNotation":"1d8", "rollType":"roll

Vecna the Archlich

Monsters Vecna: Eve of Ruin

Vecna, Afterthought is a Dagger, +2;+2 Dagger. Undying. If Vecna is slain, his soul refuses to accept its fate and lives on as a disembodied spirit that fashions a new body for itself after 1d100

is a creature, it is afflicted by entropic magic, taking 9 (2d8);{"diceNotation":"2d8", "rollType":"damage", "rollAction":"Afterthought", "rollDamageType":"necrotic"} necrotic damage at the start of

Young Moonstone Dragon

Monsters Fizban's Treasury of Dragons

", "rollAction":"Breath Weapon"}. The dragon uses one of the following breath weapons: Dream Breath. The dragon exhales mist in a 90-foot cone. Each creature in that area must succeed on a DC 14

Constitution saving throw or fall unconscious for 10 minutes. This effect ends for a creature if the creature takes damage or someone uses an action to wake it. Moonlight Breath. The dragon exhales a beam of

Moonblade Legacy

Magic Items Dungeon Master’s Guide (2014)

this creature, deciding how it acts and moves. It remains until it drops to 0 hit points or you dismiss it as an action. 00 The moonblade functions as a vorpal sword. Sentience A

hit on a roll of 19 or 20. 91–92 When you hit with an attack using the moonblade, the attack deals an extra 1d6 slashing damage. 93–94 When you hit a creature of a specific

Young Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

", "rollAction":"Nightmare Breath"}. The dragon exhales a cloud of spores in a 30-foot cone. Each creature in that area must make a DC 14 Wisdom saving throw. On a failed save, the creature takes 22 (4d10

creature takes half as much damage with no additional effects. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.Making their lairs

Nafas

Monsters Quests from the Infinite Staircase

retains its name, alignment, and personality. The creature also inherits Nafas’s palace and all it contains. If the creature refuses, Nafas gains a new body in 1d10;{"diceNotation":"1d10", "rollType

Nafas drops to 0 hit points, his body disintegrates into a whirl of multiversal dust that surrounds one creature responsible for his demise. That creature then hears Nafas’s last wish: for the

Bardic Inspiration

Compendium - Sources->Dungeons & Dragons->Player's Handbook (2014)

it makes. The creature can wait until after it rolls the d20 before deciding to use the Bardic Inspiration die, but must decide before the DM says whether the roll succeeds or fails. Once the Bardic