both both decreases card rolls

Steam Mephit

Monsters Monster Manual

Blurred Form. Attack rolls against the mephit are made with Disadvantage unless the mephit has the Incapacitated condition. Death Burst. The mephit explodes when it dies. Dexterity Saving Throw: DC

", "rollAction":"Steam Breath", "rollDamageType":"Fire"} Fire damage, and the target’s Speed decreases by 10 feet until the end of the mephit’s next turn. Success: Half damage only. Failure or Success: Being underwater doesn’t grant Resistance to this Fire damage.Fire, Poison

Sahuagin Baron

Monsters Monster Manual

Blood Frenzy. The sahuagin has Advantage on attack rolls against any creature that doesn’t have all its Hit Points. Limited Amphibiousness. The sahuagin can breathe air and water, but it must

Invisible condition, its Speed decreases by 10 feet, and all Fiends within 120 feet of the target can sense its location regardless of interposing obstacles.Acid, Cold

Frost Giant

Monsters Monster Manual

", "rollAction":"Great Bow", "rollDamageType":"Cold"} Cold damage, and the target’s Speed decreases by 10 feet until the end of its next turn.ColdWar Cry (Recharge 5–6);{"diceNotation":"1d6", "rollType

":"recharge", "rollAction":"War Cry"}. The giant or one creature of its choice that can see or hear it gains 16 (2d10 + 5) Temporary Hit Points and has Advantage on attack rolls until the start of the giant’s next turn.

Hobgoblin Warlord

Monsters Monster Manual

Aura of Authority. While in a 30-foot Emanation originating from the hobgoblin, the hobgoblin and its allies have Advantage on attack rolls and saving throws, provided the hobgoblin doesn’t

damage, and the target’s Speed decreases by 10 feet until the start of the hobgoblin’s next turn. Longsword. Melee Attack Roll: +6;{"diceNotation":"1d20+6", "rollType":"to hit", "rollAction

Vampire Nightbringer

Monsters Monster Manual

Sunlight Hypersensitivity. The vampire takes 10 Radiant damage if it starts its turn in sunlight. While in sunlight, it has Disadvantage on attack rolls and ability checks.Multiattack. The vampire

"} Necrotic damage. The target’s Hit Point maximum decreases by an amount equal to the Necrotic damage taken, and the vampire regains Hit Points equal to that amount. Shadow Strike. Melee Attack Roll

Berserker Commander

Monsters Monster Manual

Bloodied Frenzy. While Bloodied, the berserker has Advantage on attack rolls and saving throws.Multiattack. The berserker makes three attacks, using Greataxe or Javelin in any combination. Greataxe

);{"diceNotation":"4d6+4", "rollType":"damage", "rollAction":"Javelin", "rollDamageType":"Piercing"} Piercing damage, and the target’s Speed decreases by 5 feet until the start of the berserker

Vampire Spawn

Monsters Monster Manual

in sunlight. While in sunlight, it has Disadvantage on attack rolls and ability checks.Multiattack. The vampire makes two Claw attacks and uses Bite. Claw. Melee Attack Roll: +6;{"diceNotation

(3d6);{"diceNotation":"3d6", "rollType":"damage", "rollAction":"Bite", "rollDamageType":"Necrotic"} Necrotic damage. The target’s Hit Point maximum decreases by an amount equal to the Necrotic

Death Knight

Monsters Monster Manual

magical effects. Marshal Undead. Undead creatures of the death knight’s choice (excluding itself) in a 60-foot Emanation originating from it have Advantage on attack rolls and saving throws. It

the target’s Hit Point maximum decreases by an amount equal to the damage taken. Failure or Success: The death knight can’t take this action again until the start of its next turn. Lunge. The death knight moves up to half its Speed, and it makes one Dread Blade attack.Necrotic, Poison

Vampire

Monsters Monster Manual

Paralyzed condition until the weapon is removed. Sunlight. The vampire takes 20 Radiant damage if it starts its turn in sunlight. While in sunlight, it has Disadvantage on attack rolls and ability

", "rollAction":"Bite", "rollDamageType":"Necrotic"} Necrotic damage. The target’s Hit Point maximum decreases by an amount equal to the Necrotic damage taken, and the vampire regains Hit Points

Vampire Umbral Lord

Monsters Monster Manual

sunlight, it has Disadvantage on attack rolls and ability checks.Multiattack. The vampire makes two attacks, using Grave Strike or Sickening Ray in any combination. Grave Strike. Melee Attack Roll: +10

", "rollDamageType":"Necrotic"} Necrotic damage. The target’s Hit Point maximum decreases by an amount equal to the damage taken, and the vampire regains Hit Points equal to that amount.

Vampire Warden

Monsters Astarion's Book of Hungers

damage if it starts its turn in sunlight. While in sunlight, it has Disadvantage on attack rolls and ability checks. Immobile Restoration. If the vampire drops to 0 Hit Points while it doesn’t

":"2d6", "rollType":"damage", "rollAction":"Bite", "rollDamageType":"Necrotic"} Necrotic damage. The target’s Hit Point maximum decreases by an amount equal to the Necrotic damage taken, and the

Vampire Infernalist

Monsters Astarion's Book of Hungers

sunlight. While in sunlight, it has Disadvantage on attack rolls and ability checks.Multiattack (Vampire Form Only). The vampire makes two Hellfire Claw attacks and uses Bite. Hellfire Claw (Vampire

(if any). The target’s Hit Point maximum decreases by an amount equal to the Necrotic damage taken, and the vampire regains Hit Points equal to that amount. A Humanoid reduced to 0 Hit Points by

Deck of Wonder

Magic Items The Book of Many Things

. Champion. You gain a +1 bonus to weapon attack and damage rolls. This bonus lasts for 8 hours. Chancellor. Within 8 hours of drawing this card, you can cast Augury once as an action, requiring no

the next 8 hours, you can add your proficiency bonus to your initiative rolls. Day. You gain a +1 bonus to saving throws. This benefit lasts until you finish a long rest. Destiny. This card protects

Fate Dealer's Deck

Magic Items The Book of Many Things

focus, and you gain a bonus to spell attack rolls and to your spell save DC. The bonus is determined by the deck’s rarity. In addition, while you’re holding the deck, you can draw a card

Luba's Tarokka of Souls

Magic Items Tasha’s Cauldron of Everything

made to maintain your concentration on divination spells. Twist of Fate. As an action, you can draw a card from the deck and twist the fortune of another creature you can see within 15 feet of you

. Choose one of the following effects: Weal. The creature has advantage on attack rolls, ability checks, and saving throws for the next hour. Woe. The creature has disadvantage on attack rolls

Fractal Mascot

Monsters Strixhaven: A Curriculum of Chaos

advantage. The fractal can become no larger than Huge via this bonus action. Diminish. The fractal’s size decreases by one category. While the fractal is Tiny, it makes attack rolls, Dexterity

Swarm of Maggots

Monsters Van Richten’s Guide to Ravenloft

blinded until it finishes a long rest. 3–4. The creature’s hit point maximum decreases by 5 (2d4);{"diceNotation":"2d4","rollType":"roll","rollAction":"Infestation"}, and the reduction

can’t be removed until the disease ends. The creature dies if its hit point maximum drops to 0. 5–6. The creature has disadvantage on ability checks and attack rolls until it finishes its

Duergar Mind Master Legacy

Monsters Mordenkainen’s Tome of Foes

duergar has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.Multiattack. The duergar makes two melee attacks. It can replace one of those attacks with a use of

direction of the duergar's choice. Creatures that can't be charmed are immune to this effect. Reduce (Recharges after a Short or Long Rest). For 1 minute, the duergar magically decreases in size, along

Veiled Presence

Monsters The Book of Many Things

Actions). The veiled presence magically emanates dazzling light in a 10-foot-radius sphere centered on itself until the end of its next turn, during which time attack rolls against it have disadvantage

and it has advantage on attack rolls. The sphere moves with the veiled presence. When another creature starts its turn in the light or enters the light for the first time on its turn, that creature must

Clockwork Oaken Bolter