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Algorith

Medium · Construct · CR 10 · Lawful Neutral

Source. Tome of Beasts

18 (natural armor)

136 (16d8+64)

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

Walk 40 ft (12.2 m)

Fly 40 ft (12.2 m)

Swim 20 ft (6.1 m)

Climb 20 ft (6.1 m)

Crawl 20 ft (6.1 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

Environments

Arctic or Tundra Caves Coast Desert Forest or Jungle Grassland or Plains Hills Laboratory Lake Mountain Ocean Ruins Sewer Shadowfell The Abyss Astral Plane Elysium Ethereal Plane Feywild Hell Material Plane Plane of Air Plane of Earth Plane of Fire Plane of Water Swamp or Marsh Temple Badlands Tomb Underworld Urban

Traits

Immutable Form

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

Innate Spellcasting

The algorith's innate spellcasting ability is Charisma (spell save DC 16). It can innately cast the following spells, requiring no material components:

at will: aid, blur, detect magic, dimension door

5/day each: dispel magic

1/day: commune (5 questions), wall of force

Actions

Cone of Negation

Recharge 5–6

An algorith can project a cone of null energy. Targets inside the 30 foot cone take 42 (12d6) force damage and suffer the effect of a dispel magic spell. A successful DC 16 Dexterity saving throw reduces the damage to half and negates the dispel magic effect on that target.

Logic Razor

+9 to hit, reach 5 ft (1.5 m). Hit: 4d12 force damage.

Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 31 (4d12 + 5) force damage.

Multiattack

The algorith makes two logic razor attacks.

Reality Bomb

5/day

The algorith can summon forth a tiny rune of law and throw it as a weapon. Any creature within 30 feet of the square where the reality bomb lands takes 21 (6d6) force damage and is stunned until the start of the algorith's next turn. A target that makes a successful DC 16 Dexterity saving throw takes half damage and isn't stunned.

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 136 hit points (derived from 16d8+64).

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.