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Swarm of Bats

Monsters Monster Manual

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a Tiny bat. The swarm can’t regain Hit Points or gain

Hat of Vermin

Magic Items Dungeon Master’s Guide

This hat has 3 charges. While holding the hat, you can take a Magic action to expend 1 charge and summon your choice of a Bat, a Frog, or a Rat. The summoned creature magically appears in the hat and

Vampire

Monsters Monster Manual

form. Anything it is wearing transforms with it. While in bat form, the vampire can’t speak. Its game statistics, other than its size and Speed, are unchanged. While in mist form, the vampire

Legendary Resistance (3/Day, or 4/Day in Lair). If the vampire fails a saving throw, it can choose to succeed instead. Misty Escape. If the vampire drops to 0 Hit Points outside its resting place

Cloak of the Bat

Magic Items Dungeon Master’s Guide

Darkness, you can cast Polymorph on yourself, shape-shifting into a Bat. While in that form, you retain your Intelligence, Wisdom, and Charisma scores. The cloak can’t be used this way again until the next dawn.

While wearing this cloak, you have Advantage on Dexterity (Stealth) checks. In an area of Dim Light or Darkness, you can grip the edges of the cloak and use it to gain a Fly Speed of 40 feet. If you

Wave

Magic Items Dungeon Master’s Guide

you roll a 20 on the d20 for an attack roll with this weapon, the target takes an extra 21 Necrotic damage. While holding Wave, you gain the following benefits: Combat Ready. You have Advantage on

regains 1d3 expended charges daily at dawn. While you carry it, you can expend 1 charge to cast Dominate Beast (save DC 20) from it on a Beast that has a Swim Speed. Globe of Invulnerability. While

Energy Bow

Magic Items Dungeon Master’s Guide

appears nocked and ready to fire. An arrow produced by this weapon deals Force damage instead of Piercing damage on a hit, and it disappears after it hits or misses its target. Until it disappears, the

ranged attack against a creature, you can try to restrain the target instead of dealing damage to it. If the arrow hits, the target must succeed on a DC 15 Strength saving throw or have the Restrained

Find Familiar

Spells Player’s Handbook

You gain the service of a familiar, a spirit that takes an animal form you choose: Bat, Cat, Frog, Hawk, Lizard, Octopus, Owl, Rat, Raven, Spider, Weasel, or another Beast that has a Challenge Rating

independently of you, but it obeys your commands. Telepathic Connection. While your familiar is within 100 feet of you, you can communicate with it telepathically. Additionally, as a Bonus Action, you

Modify Memory

Spells Player’s Handbook

You attempt to reshape another creature’s memories. One creature that you can see within range makes a Wisdom saving throw. If you are fighting the creature, it has Advantage on the save. On a

failed save, the target has the Charmed condition for the duration. While Charmed in this way, the target also has the Incapacitated condition and is unaware of its surroundings, though it can hear

I have a readied action. Can I stop readying to take an Opportunity Attack? Or does the Ready action take a full-round commitment?