Quick Facts

Series

1.	Stable Keeper
2.	Filling Up The Barn
3.	Leading the Cavalry
4.	Mountain o' Mounts Mountain o' Mounts
5.	We're Going to Need More Saddles We're Going to Need More Saddles
6.	Mount Parade Mount Parade
7.	Mountacular Mountacular
8.	Lord of the Reins Lord of the Reins
9.	No Stable Big Enough No Stable Big Enough
10.	A Horde of Hoofbeats A Horde of Hoofbeats
11.	Thanks for the Carry! Thanks for the Carry!

Screenshots

Videos

Comments

Comment by hevgirl

Biting Frostshard Core is the reward for collecting 350 mounts
Alliance: No Stable Big Enough / Horde: No Stable Big Enough

Frenzied Feltalon is the reward for collecting 400 mounts
Alliance: A Horde of Hoofbeats / Horde: A Horde of Hoofbeats

edit: 400 mounts achieve reward was changed from Tempestuous Skystallion to Frenzied Feltalon

Comment by Bursi

Collection achievements in BfA:

400 toys: Toybox Tycoon - rewards pet Brutus (-> Brutus)
800 unique pets: Pet Emporium - rewards pet Rooter (-> Rooter)
1000 unique pets: Master of Minions - rewards pet Hearthy (-> Hearthy)
350 mounts (usable by a single character): No Stable Big Enough (A) / No Stable Big Enough (H) - rewards mount Biting Frostshard Core
400 mounts (usable by a single character): A Horde of Hoofbeats (A) / A Horde of Hoofbeats (H) - rewards mount ~~Tempestuous Skystallion~~ changed to: Frenzied Feltalon

Comment by Georgino

Hello guys
While there are many comments and threads about mount collecting achievements, I would like to make clear a few things since they are still debatable.

As of patch 8.1 there is a chain of 10 achievements starting by collecting 10 mounts to the last one which is gained by collecting 400 mounts
Note that currently there are 497 obtainable mounts (that can count toward the achievement counter (or as blizzard says: 'Usable by a single character' but this is not a true statement as we will see below)

Just for reference these achievements are listed below:
1. Stable Keeper
2. Filling Up The Barn
3. Leading the Cavalry that gives you Reins of the Albino Drake
4. Mountain o' Mounts / Mountain o' Mounts that gives you Blue Dragonhawk / Red Dragonhawk
5. We're Going to Need More Saddles / We're Going to Need More Saddles that gives you Jade Pandaren Kite String
6. Mount Parade / Mount Parade that gives you Armored Blue Dragonhawk / Armored Red Dragonhawk
7. Mountacular / Mountacular that gives you Felfire Hawk
8. Lord of the Reins / Lord of the Reins that gives you Heavenly Azure Cloud Serpent
9. No Stable Big Enough / No Stable Big Enough that gives you Biting Frostshard Core
10. A Horde of Hoofbeats / A Horde of Hoofbeats that gives you Frenzied Feltalon

Before we begin, lets make clear that the number that appears in your collection tab is not the one that matters for the achievement because this number represents the total number of mounts you own on YOUR ACCOUNT
There are many mounts (mostly main cities/racial mounts) that have a counterpart in the opposite faction.
For example if you obtain the Reins of the Winterspring Frostsaber in an alliance toon you will automatically obtain Whistle of the Venomhide Ravasaur in your horde toons
That means that in your collection tab will be added 2 mounts but actually in your achievement tracker will be added 1 mount (since a specific character can use 1 additional mount, not 2).

First of all, all mounts are acount-wide except Vashj'ir Seahorse but some of them are not counting on all of your toons
Below I will list the mounts that can confuse you since some of them are counting on all of your toons but some of them aren't

CONTROVERSIAL MOUNTS

-PROFESSION MOUNTS
There are some profession mounts that can craft/learn/ride only while you own a specific profession BUT ONCE YOU LEARN THEM THEY ARE COUNTING ON ALL OF YOUR TOONS. That mean that it doesnt mater if you learn them in you main/alt and you can even delete this profession once you learn these mounts.
These mounts are:
Tailoring: Flying Carpet , Magnificent Flying Carpet , Frosty Flying Carpet , Creeping Carpet
Leatherworking: Riding Harness , Elderhorn Riding Harness

-LEGION CLASS HALL MOUNTS
ALL LEGION CLASS HALL MOUNTS ARE COUNTING ON ALL OF YOUR TOONS ONCE YOU LEARN THEM NO MATTER IF THEY CAN USE THEM
That means that every new class hall mount that you learn in a new class (using your alts) is counting as a '+1' in your achievement.
You have a potential of +21 Mounts (toward the achievement) if you collect each one of the class hall mounts (pretty challenging tbh)
Priest: High Priest's Lightsworn Seeker
Mage: Archmage's Prismatic Disc
Death Knight: Decaying Reins of the Vilebrood Vanquisher
Monk: Ban-lu, Grandmaster's Companion
Warrior: Iron Reins of the Bloodthirsty War Wyrm
Shaman: Raging Tempest Totem
Demon Hunter: Slayer's Felbroken Shrieker
Hunter: Trust of a Dire Wolfhawk , Trust of a Fierce Wolfhawk and Trust of a Loyal Wolfhawk
Rogue: Midnight Black Reins of Dark Portent , Bloody Reins of Dark Portent , Mephitic Reins of Dark Portent and Shadowblade's Murderous Omen
Paladin: Glowing Reins of the Golden Charger , Harsh Reins of the Vengeful Charger , Heraldic Reins of the Valorous Charger and Stoic Reins of the Vigilant Charger
Warlock: Netherlord's Chaotic Wrathsteed , Netherlord's Accursed Wrathsteed and Netherlord's Brimstone Wrathsteed

-CLASS MOUNTS ***NOT TO BE CONFUSED WITH LEGION CLASS HALL MOUNTS***
SOME CLASS MOUNTS ARE COUNTING ON ALL OF YOUR TOONS ONCE YOU LEARN THEM NO MATTER IF THEY CAN USE THEM BUT THERE ARE SOME OF THEM THAT AREN'T)
Below I will list/show you which are these mounts and how they are working:

MOUNTS THAT ARE COUNTING ON ALL OF YOUR TOONS ONCE YOU LEARN THEM
Warlock: Felsteed , Dreadsteed
Death Knight: Acherus Deathcharger
Paladin: Argent Charger (This can be bought in cost of 100 Champion's Seal )

MOUNTS THAT ARE ***NOT*** COUNTING ON ALL OF YOUR TOONS
Paladin: Summon Exarch's Elekk , Summon Great Exarch's Elekk
Demon Hunter: Felsaber

As we can see, Paladins got 2 mounts that are counting only on them while Demon Hunter's got only 1
That makes Paladins the holders of the highest possible number in the game.
Theorytically speaking, you dont even need Demon Hunter's Felsaber as you can see.

-VASHJ'IR MOUNT ***NOT ACCOUNT WIDE***
Vashj'ir Seahorse
THIS MOUNT NEED TO BE OBTAINED ON EACH TOON INDIVIDUALLY.
Its CRUSIAL to obtain this mount on your PALADIN in order to get the highest possible number because if you don't, your paladin will got 1 less mount than the higher possible number.
In order to Obtain this mount you need to complete a short questline starting with Call of Duty and ending with The Abyssal Ride
If the starting quest is not available for you, make sure to complete the attunement quests of Broken Isles / Argus / Kul TIras or Zandalar, then the quest will be available for you.

Keep in mind that the achievement tracker counts each time you log in with a toon.
For example if you log in with your Paladin and your Paladin got the highest number of mounts (lets say: 382), then when you log in in your main the counter will still say '382', even if you get one more mount the tracker will not change but the next time you will log in with your paladin the tracker will say '383'
You can check each toon's mounts in Achievements tab -> Statistics -> Character -> Mounts Owned

-HOW TO GET THE HIGHEST POSSIBLE NUMBERS OF MOUNTS
-Have a Paladin and level him at least to level 80 (that will grants you the Summon Exarch's Elekk , Summon Great Exarch's Elekk and gives you the accessibility to obtain the Vashj'ir Seahorse
-Get Vashj'ir Seahorse on your Paladin
-Learn Leatherworking and Tailoring and Create/Learn the 6 mounts we mentioned above (after you learn them you are free to delete your profession or whatever you want)
-Have a Warlock at level 40 ( at level 40 you have learned both Felsteed and Dreadsteed )
-Have a Death Knight (no matter what level your DK will be, you only need his Acherus Deathcharger )
*Dont forget Argent Charger that can be obtained only by Paladin but I scarcely listed it here since we can consider it as a normal mount

At this Point your Paladin will be +2 mounts that anyother toon (if this toon got Vashj'ir Seahorse ) otherwise will be +3.
You dont have to log in to your Paladin everytime you obtain a new mount, Just make sure to do it when you are 2-3 mounts away from an achievement

Good Luck and Have a Nice Hunting :)

Comment by arkainjel001

I don't see this mentioned, and I had an issue trying to find the item in my bags.

Although the achievement states the reward is Biting Frostshard Core, the mount is automatically placed in your list as Frostshard Infernal.

Hope this clears up some confusion, and grats on your achievement!

Comment by foolotto

Very nice model, but disappointed that it's NOT a flying mount! (version 9.2.7)

Links

No Stable Big Enough

Obtain 350 mounts (usable by a single character).

Criteria

	Obtain 350 mounts (350)

Rewards

You will receive:

	Biting Frostshard Core

Guides

Patch 8.0 Feature Preview

No Stable Big Enough

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