MU Online pets: complete guide to Dinorant, Fenrir, Guardian Angel and all companions
Complete guide to all MU Online pets in Season 6: Guardian Angel (HP recovery + defense), Imp (damage bonus), Uniria (starter mount with speed), Dinorant (flying + knockback immunity — the best mid-game pet), Fenrir tiers (Blue, Red, Black — the end-game pet), Dark Horse and Dark Raven (Dark Lord exclusive), Muun companions (S12+ passive pets). How to obtain each pet, their bonuses, which to use when, and how to craft Fenrir step-by-step.
Pets in MU Online provide combat bonuses, mobility, and utility that can be the difference between surviving at your spot or dying repeatedly. From the simple Guardian Angel to the complex Fenrir crafting chain, each pet has a clear place in character progression. This guide covers every pet in Seas
Pets in MU Online provide combat bonuses, mobility, and utility that can be the difference between surviving at your spot or dying repeatedly. From the simple Guardian Angel to the complex Fenrir crafting chain, each pet has a clear place in character progression. This guide covers every pet in Season 6, their bonuses, how to obtain them, and when to use each.
Basic pets — early to mid game
Guardian Angel:
What it does:
→ Recovers HP continuously (passive healing while standing still or in combat)
→ Increases defense of the equipped character
→ Has a visual appearance (small angel hovering behind your character)
Bonus values (approximate):
→ HP recovery: +10-15 HP per second
→ Defense increase: +15-25% (varies by server)
How to obtain:
→ Drops from monsters in early-mid game maps
→ Purchasable from NPC stores on some servers
→ Tradeable from other players
When to use:
→ Early game (level 1-100): primary pet
→ Good for: melee classes that take damage while standing in monster groups
→ Less useful when: you can survive without the passive healing (high-level VIT builds)
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Imp:
What it does:
→ Increases damage dealt by the equipped character
→ Appears as a small devil-like creature
Bonus values (approximate):
→ Damage increase: +5-10% (varies by server)
→ Has no defensive bonus
How to obtain:
→ Drops from monsters, tradeable
→ Some NPCs sell it
When to use:
→ When DPS is the priority (farming sessions where you don't need healing)
→ For characters with high enough VIT to survive without Guardian Angel healing
→ Swap to Guardian Angel when in dangerous territory
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Uniria:
What it is:
→ A starter mount (unicorn-type)
→ Increases movement speed significantly
Bonus values:
→ Movement speed: +30-50% (varies by server)
→ No combat bonus
How to obtain:
→ Drops very commonly, tradeable, sometimes given at character creation (server-dependent)
When to use:
→ When you need to move quickly between spots or across maps
→ In maps where movement speed matters for catch-up farming
→ Replace with Dinorant when you get one — Dinorant is superior in all waysDinorant — the mid-game essential
What Dinorant is:
A dinosaur-like creature that serves as a combat mount.
Three important properties:
1. Flight capability:
→ Dinorant allows your character to fly
→ This means access to the Icarus map without Wing L1
→ Useful as a "placeholder" before getting Wing L1
→ Even with wings: some players keep Dinorant equipped for specific uses
2. Knockback immunity:
→ Knockback immunity is the most tactically important property
→ In Chaos Castle: knockback pushes players off the platform → elimination
→ With Dinorant: knockback skills have NO effect on you
→ In Castle Siege: knockback DKs and skills can't displace you from positions
3. Defense bonus:
→ Small defense increase
→ Not the primary reason to use Dinorant but contributes
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How to obtain Dinorant:
The Dinorant is assembled from Uniria:
Stage 1 — Create Horn:
→ Combine: 5x Unicorn Horn (drops from Unicorn monsters)
→ Process at Chaos Goblin
→ Result: Horn of Dinorant
Stage 2 — Create Dinorant:
→ Combine: Horn of Dinorant + Uniria + Jewel of Chaos
→ Success rate: approximately 50-60%
→ On failure: Uniria and Jewel of Chaos are consumed (Horn may or may not survive based on server)
Tips:
→ Have 2-3 Uniria available before attempting (account for failures)
→ Unicorn Horns drop from Unicorn monsters (Noria and similar maps)
→ Getting Dinorant is a notable milestone — worth the material investment
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When to use Dinorant vs Wings:
Dinorant is better:
→ When you need knockback immunity (Chaos Castle, Castle Siege)
→ Before you have Wing L1 (Dinorant provides flight earlier)
→ When your wings don't fly (some Wing L1 designs don't include flight on certain servers)
Wings are better:
→ In terms of combat bonus (Wings L1-L3 provide much larger damage/defense bonuses)
→ For normal farming (more DPS = faster kills)
→ When knockback immunity isn't needed
Common strategy:
→ Use Dinorant for Chaos Castle and Castle Siege
→ Use Wings for normal farming and non-PvP activities
→ Switch between them as neededFenrir — the end-game pet
What Fenrir is:
A legendary wolf companion — the most powerful pet in Season 6.
Named after the mythological Norse wolf.
Three tiers of Fenrir:
Fenrir Blue (Broken Fenrir → Stage 1):
→ Basic version
→ Flying capability (like Dinorant)
→ Defense increase
Fenrir Red (Stage 2):
→ Improved combat stats
→ Unique: REDUCES enemy defense (like a partial "ignore defense" effect)
→ Much stronger than Blue
Fenrir Black (Stage 3 — final):
→ Maximum bonuses
→ Defense reduction effect improved
→ Flying capability
→ The #1 pet for end-game combat
→ Visual: distinctive black wolf appearance
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How to craft Fenrir — complete step by step:
This is a multi-stage Chaos Goblin process:
STAGE 1 — Broken Horn:
Materials needed:
→ 10x Piece of Horn (from various monsters — check server drop list)
→ 20-30x Jewel of Bless
→ 20-30x Jewel of Soul
→ 1-5x Jewel of Chaos
→ Large amount of Zen
Process:
→ Chaos Goblin combination
→ Success rate: ~50-70%
→ On failure: Jewels consumed, Pieces of Horn may survive (server-dependent)
→ Result: Broken Horn
Tip: Pieces of Horn drop from specific monsters — find them in Tarkan and similar zones.
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STAGE 2 — Fenrir Blue (from Broken Horn):
Materials needed:
→ 1x Broken Horn (from Stage 1)
→ 1x Claw of Beast (separate boss/monster drop — very valuable)
→ 30-50x Jewel of Bless
→ 30-50x Jewel of Soul
→ Jewel of Chaos
→ Large Zen amount
Process:
→ Chaos Goblin combination
→ Success rate: ~50%
→ On failure: heavy Jewel loss — Claw of Beast may or may not survive
→ Result: Fenrir (Blue)
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STAGE 3 — Fenrir Red (upgrade from Blue):
Materials:
→ 1x Fenrir Blue
→ Large amount of Jewels (JoB and JoS)
→ Chaos Goblin combination
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STAGE 4 — Fenrir Black (upgrade from Red):
Materials:
→ 1x Fenrir Red
→ Additional Jewels for final upgrade
Economic reality:
→ Total Fenrir Black cost: 300-800 JoB equivalent in materials
→ Many players buy Fenrir Black from other players rather than crafting
→ Trading is often more efficient if you don't have the specific rare drops
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Should you craft or buy Fenrir?
Craft if:
→ You have the specific rare drops (Pieces of Horn, Claw of Beast) available
→ You have large Jewel reserves and are willing to risk failures
→ You prefer the crafting experience
Buy if:
→ You have sufficient JoB to buy directly
→ The specific drops are hard to find on your server
→ You want Fenrir as fast as possibleDark Horse and Dark Raven — Dark Lord exclusives
Dark Horse:
Who can use it: Dark Lord ONLY
What it does:
→ DL rides the Dark Horse — mounted combat
→ Increases Dark Lord's CMD stat (which increases max guild member count)
→ Mounted combat bonuses: specific to DL mounted skills
→ Fire Scream (Dark Lord's signature AoE): amplified when mounted
How to obtain:
→ Dark Horse is assembled via multiple Chaos Goblin stages
→ Requires Dark Horse-specific materials (drops on maps where DL farms)
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Dark Raven:
Who can use it: Dark Lord ONLY
What it does:
→ Dark Raven is a bird companion that attacks independently
→ Adds continuous DPS while DL focuses on other skills
→ Passive damage companion — no action needed from player
How to obtain:
→ Similar multi-stage process to Dark Horse
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Are they worth it for Dark Lord?
Yes — both pets enhance DL significantly:
→ Dark Horse + Dark Raven simultaneously active = meaningful DPS increase
→ CMD increase from Dark Horse = larger guild (strategic value in Castle Siege)
→ DL without these pets is at a significant disadvantage against DL with themMuun companions — Season 12+ only
What Muun are:
IMPORTANT: Muun do NOT exist in Season 6.
In Season 12+:
→ Small companion entities with passive bonuses
→ Equipped in a SEPARATE slot (does not replace Fenrir or wings)
→ Visual: small creature that follows your character
→ Multiple Muun can be equipped simultaneously (slot count varies)
Muun types:
→ Attack Muun: offensive bonuses
→ Defense Muun: defensive bonuses
→ Elemental Muun: element-specific bonuses (tied to Pentagrama system)
→ Support Muun: EXP/Drop rate bonuses
→ Utility Muun: various special effects
Muun rarities:
→ Normal (white) < Rare (blue) < Epic (gold) < Legendary (red/purple)
→ Higher rarity: stronger bonus
How to obtain (S12+):
→ Drop from S12+ field monsters
→ Raid boss drops
→ Event rewards
→ Upgrade: 3x identical Muun (same type + same rarity) → 1 higher rarity Muun
Muun upgrade cost example:
→ To get 1 Legendary Muun from Normal Muun:
→ Need 81 Normal Muun → 27 Rare → 9 Epic → 3 Legendary → 1 higher Legendary
→ This is a massive investment — Legendary Muun are extremely valuableSee also the Chaos Goblin combinations guide (Fenrir and Dinorant crafting recipes in detail), the Dark Lord class guide (Dark Horse and Dark Raven mechanics), and the modern seasons guide (Muun in Season 12+ context).
Frequently asked questions
What's the best MU Online pet?
In Season 6: Fenrir (Black) is the best overall pet — it provides combat bonuses and the ability to fly. Dinorant is the best mid-game pet for its flying capability + knockback immunity (very useful in Castle Siege). Guardian Angel is excellent for survivability early-to-mid game. The 'best' depends on your stage of progression and current activity.
How do I get a Fenrir?
Fenrir requires a multi-stage Chaos Goblin combination. Stage 1: collect Pieces of Horn (from various monsters) + many Jewels of Bless and Soul → combine to get Broken Horn. Stage 2: Broken Horn + Claws of Beast + many Jewels → combine to get Fenrir. This is one of the most expensive crafting chains in S6. Many players buy Fenrir from other players rather than crafting it.
What is the Dinorant and why is it important?
The Dinorant is an orange/tan dinosaur-like mount that gives your character: flight capability (access to Icarus without wings), knockback immunity (cannot be pushed off platforms in Chaos Castle or knocked away in CS), and some defense. It's the most practical mid-game pet — you want it before you have Wing L1 for flight, and the knockback immunity remains useful even at end-game.
Do Dark Horse and Dark Raven work for all classes?
No — Dark Horse and Dark Raven are exclusive to the Dark Lord class. They provide DL-specific bonuses: Dark Horse increases CMD stat and mounted combat power, Dark Raven deals additional damage independently. Other classes cannot equip or use these pets.