Mounts of Mayhem is Minecraft's fourth game drop of 2025, launching on December 9 for both Java Edition (1.21.11) and Bedrock Edition (1.21.130). This update introduces thrilling new mounts, hostile jockeys, and combat-focused mobs to enhance exploration and battles across oceans, deserts, and plains. Key additions include tamable underwater rides, undead variants of familiar animals, and spear-wielding enemies. This guide details exact spawn locations, biomes, conditions, and tips for tracking down every new mob.
Summary Table of New Mobs and Spawn Biomes
| Mob | Primary Biomes | Spawn Conditions | Hostile/Tamable? |
|---|---|---|---|
| Nautilus | All Ocean variants | Y=38-58, groups of 1-3 | Neutral/Tamable |
| Zombie Nautilus | Oceans, Dripstone Caves | With drowned trident jockey | Hostile (until tamed) |
| Camel Husk | Deserts | Night, light level 0, with dual riders | Hostile (until tamed) |
| Parched | Deserts | Night, replaces 50% of skeletons | Hostile |
| Zombie Horse | Plains, Savannas | Night, with zombie iron spear rider | Hostile (until tamed) |
Nautilus

The Nautilus is a tamable aquatic mount perfect for underwater adventures. It grants the "Breath of the Nautilus" effect, freezing your oxygen bar while ridden, and performs dash attacks for quick movement.
- Spawn Biomes: All ocean biomes (frozen, cold, deep cold, deep frozen, lukewarm, warm, regular).
- Conditions: Y levels 38 to 58; spawns in groups of 1-3; 50% chance in colder oceans, 45% in warm oceans, lower in others; 10% baby spawn chance in Bedrock Edition.
- Tips: Dive into deep, cold oceans near shipwrecks or seagrass for best rates. Tame with pufferfish (first time), then breed with any fish bucket. Saddle it up and ride - no drowning worries!
- Loot: 0-1 Nautilus Shell, 1-3 XP.
- Health/Damage: Neutral unless provoked.
Zombie Nautilus

This undead Nautilus variant often appears as a "jockey" with a trident-wielding drowned rider, ramping up ocean threats. A coral-covered version spawns in warm oceans.
- Spawn Biomes: All oceans; Dripstone Caves (via drowned); warm oceans for coral variant.
- Conditions: 50% chance when adult drowned with trident spawn; no peaceful mode; swims 10% faster than regular Nautilus.
- Tips: Hunt drowned in oceans or caves - kill the rider first to tame the mount with pufferfish. It burns in sunlight but won't dehydrate on land. Great for tamed underwater speedsters.
- Loot: 0-3 Rotten Flesh, 1-3 XP.
- Health/Damage: 7.5 hearts; 1.25-2.25 hearts damage.
Camel Husk

An undead twist on the camel, this mount spawns as a deadly triple threat with riders. Once riders are defeated, it turns tamable.
- Spawn Biomes: Deserts.
- Conditions: Nighttime, light level 0, on open ground; uncommon; always with husk (iron spear rider) and Parched skeleton.
- Tips: Patrol desert surfaces at night. Clear the riders (husk first for hunger effect immunity), then heal/tame with rabbit's foot. Supports two players; can't breed.
- Loot: 2-3 Rotten Flesh, 1-3 XP.
- Health/Damage: 16 hearts; passive once tamed.
Parched

A sun-resistant desert skeleton that fires Weakness arrows, slowing your melee attacks. Often rides Camel Husks.
- Spawn Biomes: Deserts.
- Conditions: Night, light level 0; replaces 50% of regular skeletons; part of Camel Husk jockeys.
- Tips: Deserts are now skeleton central - equip shields against Weakness arrows. Slower fire rate than standard skeletons.
- Loot: 0-2 Bones, 0-2 Arrows, 0-1 Arrow of Weakness, 5 XP.
- Health/Damage: Standard skeleton stats; immune to Weakness.
Zombie Horse (Now Naturally Spawning)

Zombie Horses are finally survival-accessible, spawning as "Zombie Horsemen" with spear zombies. Tame for a speedy undead steed.
- Spawn Biomes: Plains and all variants, Savannas (on grass blocks).
- Conditions: Night; regular zombie with iron spear as rider only.
- Tips: Roam plains/savannas at night. Kill rider (may drop red mushroom), heal/tame horse with red mushrooms. Armor protects from sunlight burn; variable speed/jump.
- Loot: 2-3 Rotten Flesh (horse), red mushroom (rider chance).
- Health/Damage: 12.5-25 hearts; passive.
General Tips for Mob Hunting
- Difficulty: Undead mobs (Camel Husk, Zombie Nautilus, Zombie Horse, Parched) skip peaceful mode.
- Preparation: Bring spears for reach, nautilus armor for oceans, potions of water breathing (backup), and rabbit's feet/red mushrooms for taming.
- Efficiency: Use chunkbase spawners or light up areas to force spawns. Explore at night in target biomes; oceans yield Nautilus/Zombie pairs, deserts pack jockey chaos.
- Java vs. Bedrock: Spawns align closely, but Bedrock has minor baby rates and texture tweaks.
Gear up, explorer - the mayhem awaits on December 9! Update your game and ride into battle.




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