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Algorith

Medium · Construct · CR 10 · Lawful Neutral

Source. Tome of Beasts 1 (2023 Edition)

18 (natural armor)

153 (18d8 + 72)

Ability Scores

Core attributes and their modifiers.

STR

DEX

CON

INT

WIS

CHA

Overview

Category Monsters

Size Medium

Type Construct

Alignment Lawful Neutral

XP 5900

Initiative Bonus +2

Movement

Fly 40 ft (12.2 m)

Senses

Darkvision 60 ft (18.3 m)

Passive Perception 17

Saving Throws

Dexterity +6 Constitution +8 Wisdom +7 Charisma +8

Skills

Athletics +9 Insight +7 Investigation +5 Perception +7

Languages

Common, Celestial, Draconic, Infernal

Resistances & Immunities

Damage Immunities

poison

Damage Resistances

acid, cold, lightning

Condition Immunities

charmed, exhaustion, frightened, paralyzed, petrified, poisoned

Traits

Construct Nature

The algorith doesn’t require air, food, drink, or sleep.

Immutable Form

The algorith is immune to any spell or effect that would alter its form.

Actions

Cone of Negation

Recharge 5–6

The algorith projects null energy in a 30-foot cone. Each creature in the area must make a DC 16 Dexterity saving throw. On a failure, a creature takes 33 (6d10) force damage and any spell of 4th level or lower on the creature ends, as if it had been the target of a dispel magic spell. On a success, a creature takes half the damage and spells on it don't end.

Logic Razor

+9 to hit, reach 5 ft (1.5 m). Hit: 3d10+5 force damage.

Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 21 (3d10 + 5) force damage.

Reality Bomb

5/day

The algorith summons and throws a tiny rune of law at a point it can see within 100 feet. The rune explodes on impact. Each creature within 30 feet of where the rune landed must make a DC 16 Dexterity saving throw. On a failure, a creature takes 27 (5d10) force damage and is stunned until the end of its next turn. On a success, a creature takes half the damage and isn't stunned.

Spellcasting

The algorith casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 16):

At Will: bless, detect magic, dimension door, dispel magic
1/Day Each: commune (as an action), wall of force

About Algorith

Algorith is a medium construct with a Challenge Rating of 10. It has a lawful neutral alignment.

In combat, this creature maintains an Armor Class of 18 and possesses 153 hit points (derived from 18d8 + 72).

Algorith has communication capabilities including Common, Celestial, Draconic, Infernal. This allows it to interact verbally with various creatures and characters.

GM Tips: Using Algorith

1 tips available

When using Algorith 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 Algorith

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 10.

Solo Encounter:

A single character of level 13 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 11,000 XP
Hard: 16,500 XP
Deadly: 22,000 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 Algorith?: Algorith has a Challenge Rating of 10, making it appropriate for parties of level 10.0.
What type of creature is Algorith?: Algorith is a Medium Construct, which affects how certain spells and abilities interact with it.
What languages does Algorith speak?: Algorith can communicate in Common, Celestial, Draconic, Infernal.