Last updated: July 21, 2026

On this page: All Pets · Fenrir Crafting · Fenrir Colors · Dark Lord Pets · Pet Care · FAQ

MU Online Pets Guide – Fenrir, Dark Horse & Every Pet

Pets occupy their own equipment slot and range from the humble Imp (+30% damage for a level 5 character) to the crafted Horn of Fenrir — the classic status symbol of MU Online. This guide covers every pet's effect and source, the complete three-stage Fenrir craft with farming spots, and the color upgrades that turn a plain Fenrir into a Golden one.

The Pets & Mounts in 3D

Rendered straight from the Season 21 game client models — this is exactly how each pet looks in game.

All Pets at a Glance

	Pet	Effect	How to get
	Guardian Angel	Absorbs 20% of damage taken, +50 HP	Drops from low-level monsters
	Imp	+30% damage dealt	Drops from low-level monsters
	Horn of Uniria	Rideable mount, +15% speed; material for Dinorant	Drops from mid-level monsters
	Dinorant	Flying mount: +15% damage, 10% absorb, allows attack while mounted	Chaos Machine: 10× Uniria + Chaos (~70%)
	Dark Horse	Dark Lord exclusive: big damage absorb (up to ~30%), Earthshake skill, levels up	Dark Lord spell/quest line; drops on some servers
	Dark Raven	Dark Lord exclusive: attacks enemies independently, levels with Command	Dark Lord spell/quest line
	Horn of Fenrir	Fastest mount, +200 HP; Blue/Black/Golden upgrades add absorb, damage or AoE skill	Crafted — see walkthrough below
	Demon	+40% damage, +10% attack speed — the premium Imp	Cash shop / events
	Spirit of Guardian	30% damage absorb, +50 HP — the premium Angel	Cash shop / events
	Pet Panda	+30% EXP, movement speed, shop discount (varies)	Events / cash shop
	Pet Unicorn	+30% Zen drop, defense bonus (varies)	Events / cash shop

How to Make Fenrir (Full Walkthrough)

The Fenrir craft is a three-stage Chaos Machine chain. All materials drop in Crywolf — Balram, Soram and Death Spirit are the usual targets. Budget for failures: at classic rates the full chain averages several runs of materials.

Stage	Recipe	Result	Rate
1 (×5)	Splinter of Armor ×20 + Bless of Guardian ×20 + 1 Jewel of Chaos	Fragment of Horn	~70%
2	Fragment of Horn ×5 + Claw of Beast ×10 + 1 Jewel of Chaos	Broken Horn	~50%
3	Broken Horn + Jewel of Life ×3 + 1 Jewel of Chaos	Horn of Fenrir	~30%

Fenrir gives +200 HP, the fastest mounted movement in the classic game, and lets you attack while mounted. Its durability drains when you take hits — repair with Jewels of Bless dropped onto the horn.

Fenrir Color Upgrades

Upgrade	Recipe (classic)	Bonus
Blue Fenrir (defense)	Fenrir + armor piece +11 +4opt or higher + 5 Bless + 5 Soul + 1 Chaos	+10% damage absorb while mounted
Black Fenrir (attack)	Fenrir + weapon +11 +4opt or higher + 5 Bless + 5 Soul + 1 Chaos	+10% damage while mounted
Golden Fenrir	Blue or Black Fenrir + excellent item +11 +4opt + 10 Bless + 10 Soul + 1 Chaos	+200 HP/Mana, +10% DMG and the AoE Plasma Storm skill

Upgrade rates are low (~25–40% classic) and the sacrificed item is consumed — feed the machine a cheap qualifying item, never your gear.

Dark Lord Pets: Dark Horse & Dark Raven

The Dark Lord's signature companions work differently: they gain experience and level up with the Command stat instead of draining durability. The Dark Horse is a mount with the Earthshake stun and damage absorption that scales to roughly 30% at high level; the Dark Raven is an autonomous attacker whose damage and hit rate grow with its level and your Command. Both lose experience on character death, and both are re-summoned via spellbooks if lost — the reason every Castle Siege lord babysits their horse's level.

Pet Care Basics

Pet	Maintenance
Angel / Imp / Uniria	Durability drains with use; cheap to replace — carry spares
Dinorant / Fenrir	Repair by dropping Jewels of Bless (Fenrir) or via NPC; Dinorant can also roll bonus options at craft
Dark Horse / Raven	Level them; protect the level by not dying — experience loss applies
Premium pets	Usually indestructible but time-limited or account-bound — check the item description

Continue Reading

Pets are one piece of the character kit:

Guide	Why it helps
Chaos Machine	Where Fenrir, Dinorant and every color upgrade is combined — all rates in one place.
Jewels guide	The Life, Bless and Chaos jewels every pet craft and repair consumes.
Muun system	The modern companion system that runs alongside classic pets.
All MU Online wings	Note: most wings and pets share visual slots — but their bonuses stack.

FAQ

Can I use a pet and wings together?
Yes — pets use their own slot, and bonuses stack with wings.

Imp or Angel for a new character?
Imp for grinding speed (+30% damage), Angel when you start dying. Most players carry both.

Where exactly do Fenrir materials drop?
Crywolf map — all regular monsters there drop Splinters, Bless of Guardian and Claws at decent rates. An AoE class clears a full material set in a few hours.

Can Fenrir fly to Icarus?
No — Icarus still requires wings or a cape; Fenrir is ground-only but works everywhere else.

Which Fenrir color is best?
Black for farming and PvP damage, Blue for siege tanking, Golden if you can afford it — Plasma Storm plus the stat bonuses beats both.