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Returning 35 results for 'first must'.
Equipment
As a Utilize action, you can spill Ball Bearings from their pouch. They spread to cover a level, 10-foot-square area within 10 feet of yourself. A creature that enters this area for the first time on
a turn must succeed on a DC 10 Dexterity saving throw or have the Prone condition. It takes 10 minutes to recover the Ball Bearings.
Magic Items
Dungeon Master’s Guide
You gain a +3 bonus to attack rolls and damage rolls made with this magic weapon.
The first time you attack with the weapon on each of your turns, you can transfer some or all of the weapon’s
bonus to your Armor Class. For example, you could reduce the bonus to your attack rolls and damage rolls to +1 and gain a +2 bonus to Armor Class. The adjusted bonuses remain in effect until the start of your next turn, although you must hold the weapon to gain a bonus to AC from it.
Equipment
As a Utilize action, you can spread Caltrops from their bag to cover a 5-foot-square area within 5 feet of yourself. A creature that enters this area for the first time on a turn must succeed on a DC
Spells
Player’s Handbook
You launch a lightning bolt toward a target you can see within range. Three bolts then leap from that target to as many as three other targets of your choice, each of which must be within 30 feet of
the first target. A target can be a creature or an object and can be targeted by only one of the bolts.
Each target makes a Dexterity saving throw, taking 10d8 Lightning damage on a failed save or
Spells
Player’s Handbook
.
Ground in the Cylinder is Difficult Terrain. When a creature enters the Cylinder for the first time on a turn or starts its turn there, it must succeed on a Dexterity saving throw or have the Prone condition and lose Concentration.
Spells
Player’s Handbook
You create a magical zone that guards against deception in a 15-foot-radius Sphere centered on a point within range. Until the spell ends, a creature that enters the spell’s area for the first
fails on this save.
An affected creature is aware of the spell and can avoid answering questions to which it would normally respond with a lie. Such a creature can be evasive yet must be truthful.
Spells
Player’s Handbook
to the spot you designated when you prepared your sanctuary (see below). If you cast this spell without first preparing a sanctuary, the spell has no effect.
You must designate a location, such as a temple, as a sanctuary by casting this spell there.
Magic Items
Dungeon Master’s Guide
This prism has 50 charges. While you are holding it, you can take a Magic action and use one of three command words to cause one of the following effects:
First Command Word. The gem sheds Bright
function of the gem.
Second Command Word. You expend 1 charge and cause the gem to fire a brilliant beam of light at one creature you can see within 60 feet of yourself. The creature must succeed on a
Spells
Player’s Handbook
creature other than you enters a space within 30 feet of the ammunition for the first time on a turn or ends its turn there, one piece of ammunition flies up to strike it. The creature must succeed on a
Equipment
must have a feature that lets you use it.
Cleave. If you hit a creature with a melee attack roll using this weapon, you can make a melee attack roll with the weapon against a second creature within 5
feet of the first that is also within your reach. On a hit, the second creature takes the weapon’s damage, but don’t add your ability modifier to that damage unless that modifier is negative. You can make this extra attack only once per turn.
Monsters
Monster Manual
reflection in the Cone, the medusa must make this save. First Failure: The target has the Restrained condition and repeats the save at the end of its next turn if it is still Restrained, ending the effect
Spells
Player’s Handbook
You contact a deity or a divine proxy and ask up to three questions that can be answered with yes or no. You must ask your questions before the spell ends. You receive a correct answer for each
finishing a Long Rest, there is a cumulative 25 percent chance for each casting after the first that you get no answer.
Spells
Player’s Handbook
but you can see the hound, and it is intangible and invulnerable. When a Small or larger creature comes within 30 feet of it without first speaking the password that you specify when you cast this
spell, the hound starts barking loudly. The hound has Truesight with a range of 30 feet.
At the start of each of your turns, the hound attempts to bite one enemy within 5 feet of it. That enemy must
Magic Items
Dungeon Master’s Guide
to the blazing heart of a great volcano. With the aid of Moradin, a god of creation, he first crafted four mighty tools: the Starmetal Pick, the Earthheart Forge, the Anvil of Songs, and the Shaping
, and they threw back their enemies and enjoyed an era of prosperity. This young dwarf is remembered as the First King. When he became old, he passed the weapon, which had become his badge of office
Equipment
must have a feature that lets you use it.
Cleave. If you hit a creature with a melee attack roll using this weapon, you can make a melee attack roll with the weapon against a second creature within 5
feet of the first that is also within your reach. On a hit, the second creature takes the weapon’s damage, but don’t add your ability modifier to that damage unless that modifier is negative. You can make this extra attack only once per turn.
Spells
Player’s Handbook
You attempt to bind a Celestial, an Elemental, a Fey, or a Fiend to your service. The creature must be within range for the entire casting of the spell. (Typically, the creature is first summoned
into the center of the inverted version of the Magic Circle spell to trap it while this spell is cast.) At the completion of the casting, the target must succeed on a Charisma saving throw or be bound to
Spells
Player’s Handbook
You shape-shift into another creature for the duration or until you take a Magic action to shape-shift into a different eligible form. The new form must be of a creature that has a Challenge Rating
no higher than your level or Challenge Rating. You must have seen the sort of creature before, and it can’t be a Construct or an Undead.
When you cast the spell, you gain a number of Temporary
Monsters
Monster Manual
", "rollAction":"Ooze Cube", "rollDamageType":"Acid"} Acid damage.
Transparent. Even when the cube is in plain sight, a creature must succeed on a DC 15 Wisdom (Perception) check to notice the cube if the
the cube enters for the first time during this move. Failure: 10 (3d6);{"diceNotation":"3d6", "rollType":"damage", "rollAction":"Engulf", "rollDamageType":"Acid"} Acid damage, and the target is engulfed
Spells
Player’s Handbook
You step into a stone object or surface large enough to fully contain your body, merging yourself and your equipment with the stone for the duration. You must touch the stone to do so. Nothing of
to you. If expelled, you move into an unoccupied space closest to where you first entered and have the Prone condition.
Spells
Player’s Handbook
creature moves through the wall, it must spend 4 feet of movement. Furthermore, the first time a creature enters a space in the wall on a turn or ends its turn there, the creature makes a Dexterity
Magic Items
Dungeon Master’s Guide
functions like a nonmagical weapon of its kind for anyone other than its chosen bearer.
A Moonblade has one rune on it for each bearer it has willingly served (typically 1d6 + 1). The first rune grants a
+1 bonus to attack rolls and damage rolls made with this magic weapon. Each rune beyond the first grants the Moonblade an additional property. The DM chooses each property or determines it randomly by
Spells
Player’s Handbook
turn. Webs layered over a flat surface have a depth of 5 feet.
The first time a creature enters the webs on a turn or starts its turn there, it must succeed on a Dexterity saving throw or have the
Spells
Player’s Handbook
:
The creature can’t willingly enter the Cylinder by nonmagical means. If the creature tries to use teleportation or interplanar travel to do so, it must first succeed on a Charisma saving throw
Magic Items
Dungeon Master’s Guide
skull surmounts it. For this to happen, the long-lost hero must first be restored to life—no easy task, given the fact that Orcus has imprisoned the hero’s soul and keeps it hidden and well
from it (save DC 18). The table indicates how many charges you must expend to cast the spell.
Spell
Charge Cost
Animate Dead
1
Blight
2
Circle of Death
3
Finger of
Spells
Player’s Handbook
’t leave it by nonmagical means. If the creature tries to use teleportation or interplanar travel to leave, it must first make a Charisma saving throw. On a successful save, the creature can use
Spells
Player’s Handbook
-square panels. Each panel must be contiguous with another panel. In any form, the wall is 1 foot thick and lasts for the duration.
If the wall cuts through a creature’s space when it appears
. Reducing a 10-foot section of wall to 0 Hit Points destroys it and leaves behind a sheet of frigid air in the space the wall occupied.
A creature moving through the sheet of frigid air for the first time
Spells
Player’s Handbook
feet in diameter. If you choose an object, it must remain in place; if it is moved more than 10 feet from where you cast this spell, the glyph is broken, and the spell ends without being triggered
minutes, after which time the spell ends. Each creature in the Sphere when the glyph activates is targeted by its effect, as is a creature that enters the Sphere for the first time on a turn or ends
Spells
Player’s Handbook
chose until the spell ends or you choose a different effect.
Whirlpool. You cause a whirlpool to form in the center of the area, which must be at least 50 feet square and 25 feet deep. The whirlpool
the whirlpool is pulled 10 feet toward it. When a creature enters the whirlpool for the first time on a turn or ends its turn there, it makes a Strength saving throw. On a failed save, the creature
Magic Items
Dungeon Master’s Guide
) check related to the Abyss. When you do so, you gain Advantage on the check.
Containment. The first ten pages of the Demonomicon are blank. As a Magic action while holding the book, you can target a
Fiend that you can see that is trapped within the area of a Magic Circle spell. The Fiend must succeed on a DC 20 Charisma saving throw with Disadvantage or become trapped within one of the Demonomicon
Monsters
Monster Manual
. First Failure: The target has the Restrained condition and repeats the save at the end of its next turn if it is still Restrained, ending the effect on itself on a success. Second Failure: The target
within 1 mile of the lair feel as if they’re being watched. Any creature (excluding the beholder and its allies) that finishes a Short Rest while within 1 mile of the lair must succeed on a DC 13
Monsters
Monster Manual
. Constitution Saving Throw: DC 17. First Failure: The target has the Restrained condition and repeats the save at the end of its next turn if it is still Restrained, ending the effect on itself on a success
lair feel as if they’re being watched. Any creature (excluding the death tyrant and its allies) that finishes a Short Rest while within 1 mile of the lair must succeed on a DC 15 Wisdom saving
Monsters
Ghosts of Saltmarsh
the target is a creature, the first mate can choose to deal no damage with the attack to disarm the target. The target must succeed on a DC 14 Strength saving throw or drop one item it is holding on the ground.
Sea Legs. The first mate has advantage on ability checks and saving throws to resist being knocked prone.Multiattack. The first mate makes two attacks with its longsword.
Longsword. Melee Weapon
Monsters
The Book of Many Things
Fortune Teller. Oddlewin can cast the Augury spell as a ritual, using cards as the material component.
Nilbogism. Any creature that attempts to damage Oddlewin must first succeed on a DC 12 Charisma
saving throw or have the charmed condition until the end of the creature’s next turn. The creature must use its action praising Oddlewin.
Oddlewin can’t regain hit points, including
Magic Items
Tasha’s Cauldron of Everything
prepared wizard spells with a different spell in the book. The new spell must be of the enchantment school.
When you cast an enchantment spell, you can expend 1 charge to impose disadvantage on the first saving throw one target makes against the spell.
Magic Items
Bigby Presents: Glory of the Giants
grants a +1 bonus to attack and damage rolls made with it. The first time you hit any creature with the staff on your turn, the creature must succeed on a DC 12 Strength saving throw or be restrained by