Creature Reference Back to Creatures

Shimmer Seal

Medium · Beast · CR 5 · Unaligned

Source. Tome of Beasts 2

105 (14d8+42)

Ability Scores

Core attributes and their modifiers.

STR

DEX

CON

INT

-3

WIS

CHA

-1

Overview

Category Monsters

Size Medium

Type Beast

Alignment Unaligned

XP 1800

Initiative Bonus +2

Movement

Walk 30 ft (9.1 m)

Swim 40 ft (12.2 m)

Climb 15 ft (4.6 m)

Crawl 15 ft (4.6 m)

Senses

Darkvision 60 ft (18.3 m)

Passive Perception 11

Saving Throws

Wisdom +4 Charisma +2

Skills

Acrobatics +8 Performance +5 Stealth +5

Resistances & Immunities

Damage Resistances

cold

Traits

Limited Invisibility

When the shimmer seal is on an icy surface or underwater, it is invisible. In all other terrain, the shimmer seal has advantage on Dexterity (Stealth) checks. Seals, other pinnipeds, and creatures chosen by the shimmer seal can see it.

Sureflippered

The shimmer seal can move across and climb icy surfaces without needing to make an ability check. Additionally, difficult terrain composed of ice or snow doesn’t cost it extra movement.

Underwater Propulsion

When the shimmer seal is underwater, it can take the Dash action as a bonus action on each of its turns.

Actions

Multiattack

The shimmer seal makes two tusk attacks.

Tusk

+7 to hit, reach 5 ft (1.5 m). Hit: 3d6+4 slashing damage.

Melee Weapon Attack: +7 to hit, reach 5 ft., one creature. Hit: 14 (3d6 + 4) slashing damage.

About Shimmer Seal

Shimmer Seal is a medium beast with a Challenge Rating of 5. It has a unaligned alignment.

In combat, this creature maintains an Armor Class of 12 and possesses 105 hit points (derived from 14d8+42).

GM Tips: Using Shimmer Seal

1 tips available

When using Shimmer Seal in your D&D 5e campaign, consider these tactical approaches:

Aquatic Combat: This creature can swim at 40 ft. It has advantage in water environments. Consider fighting on land or using water-based spells against it.

Player Guide: Facing Shimmer Seal

1 strategies available

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

Aquatic Combat Defense: This creature can swim at 40 ft! It has advantage in water. Fight on land if possible. Use 'Control Water' or drain water sources to limit its mobility.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 5.

Solo Encounter:

A single character of level 7 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 3,000 XP
Hard: 4,500 XP
Deadly: 6,000 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 Shimmer Seal?: Shimmer Seal has a Challenge Rating of 5, making it appropriate for parties of level 5.0.
What type of creature is Shimmer Seal?: Shimmer Seal is a Medium Beast, which affects how certain spells and abilities interact with it.