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Phase Monster

Large · Monstrosity · CR 4 · Chaotic Evil

Source. Monstrous Menagerie

85 (10d10+30)

Ability Scores

Core attributes and their modifiers.

STR

DEX

CON

INT

-3

WIS

CHA

-1

Overview

Category Monsters

Size Large

Type Monstrosity

Alignment Chaotic Evil

XP 1100

Initiative Bonus +2

Movement

Walk 30 ft (9.1 m)

Fly 50 ft (15.2 m)

Swim 15 ft (4.6 m)

Climb 15 ft (4.6 m)

Crawl 15 ft (4.6 m)

Senses

Darkvision 60 ft (18.3 m)

Passive Perception 14

Saving Throws

Dexterity +4

Skills

Perception +4 Stealth +4

Traits

Mirror Image

A magical illusion cloaks the phase monster, creating a reflection of the monster nearby and concealing its precise location. While the monster is not incapacitated, attack rolls against it have disadvantage. When a creature hits the phase monster with an attack, this trait stops working until the end of the phase monsters next turn.

Actions

Blood-Curdling Scream

Recharge 5–6

The phase monster unleashes a horrific screech. Each creature within 60 feet that can hear it makes a DC 13 Wisdom saving throw. On a failure it is frightened for 1 minute. While frightened by Blood-Curdling Scream a creature must take the Dash action and move away from the phase monster by the safest available route on each of its turns unless there is nowhere to move. If the creature ends its turn in a location where it doesnt have line of sight to the phase monster the creature makes a Wisdom saving throw. On a successful save it is no longer frightened.

Claws

+6 to hit, reach 5 ft (1.5 m). Hit: 2d4+3 plus 2d4 slashing damage.

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (2d4 + 3) slashing damage plus an additional 5 (2d4) slashing damage if the target is prone.

Horns

+6 to hit, reach 5 ft (1.5 m). Hit: 2d4+3 bludgeoning damage.

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (2d4 + 3) bludgeoning damage. If the target is a creature and the phase monster moves at least 20 feet straight towards the target before the attack the target takes an additional 5 (2d4) bludgeoning damage and makes a DC 14 Strength saving throw falling prone on a failure.

Multiattack

The phase monster attacks with its horns and its claws.

Bonus Actions

Shapeshift

The phase monster magically changes its form to that of a Small goat or into its true form. While in goat form, it loses its fly speed and Mirror Image trait. Its statistics, other than its size and speed, are unchanged in each form.

About Phase Monster

Phase Monster is a large monstrosity with a Challenge Rating of 4. It has a chaotic evil alignment.

In combat, this creature maintains an Armor Class of 13 and possesses 85 hit points (derived from 10d10+30).

GM Tips: Using Phase Monster

1 tips available

When using Phase Monster in your D&D 5e campaign, consider these tactical approaches:

Flight Control Strategy: Target flying creatures with spells like 'Hold Person', 'Web', or 'Grease' to ground them. Without flight restriction, they can escape melee range easily. Consider area denial spells below their flight altitude to force them into disadvantageous positions.

Player Guide: Facing Phase Monster

1 strategies available

When your party encounters this creature, keep these strategies in mind:

Counter Flight Advantage: This creature can fly! Use ranged attacks, reach weapons, or spells like 'Thunderwave' to push it away. Consider 'Gust of Wind' or 'Earthbind' to ground it. Melee characters need fly speed or flight magic to engage.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 4.

Solo Encounter:

A single character of level 6 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 2,000 XP
Hard: 3,000 XP
Deadly: 4,000 XP

Based on D&D 5e Dungeon Master's Guide encounter building guidelines. CR roughly equals party level for medium encounters.

Frequently Asked Questions

What is the challenge rating of Phase Monster?: Phase Monster has a Challenge Rating of 4, making it appropriate for parties of level 4.0.
What type of creature is Phase Monster?: Phase Monster is a Large Monstrosity, which affects how certain spells and abilities interact with it.