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4.05 2,852 votes
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4.30 2,285 votes

Drop: Chromaggus [??+]

Zone: Blackwing Lair

Approximate Drop Rate: 1 in 7

Whistle of Chromatic Bone
Whistle of Chromatic Bone
Binds when picked up
Use: Teaches you how to summon this companion.
Want it Want it | Got it | Exclude — Community: 70.0% have it
Neutral Neutral
Idles about, occasionally emotes a roar.
Vocalization (on-click)
3 allowed
Mists of Pandaria
Patch 5.1.0 | Posted: November 27, 2012
Collecting this pet is one of the requirements for the achievement Raiding with Leashes.
Level 0: Health 0Power 0Speed 0
Requires Pet Level: 1

100% Hit Chance 


Bites at the enemy, dealing 394 Beast damage.

Vs. Critter

Vs. Flying
Requires Pet Level: 10

100% Hit Chance 


Deals 197 Magic damage to the enemy's active pet and 118 Magic damage to the enemy's backline pets.

Vs. Flying

Vs. Mechanical
3 Round Cooldown
Requires Pet Level: 2

100% Hit Chance 


A distant howl frightens the target, increasing the damage they take on the next attack by 100%, lasts 2 rounds.

3 Round Cooldown
Requires Pet Level: 15

Heals the user for 551 health and increases the maximum health of your active pet by 5 per level for 9 rounds.

1 Round Cooldown
Requires Pet Level: 4

100% Hit Chance 


Deals 394 Beast damage.

If the user kills an enemy with Ravage, they restore 394 health.


Ravage continues for 2 rounds.

Vs. Critter

Vs. Flying
5 Round Cooldown
Requires Pet Level: 20

100% Hit Chance 


Instantly deals 985 Magic damage. The user must recharge for two rounds afterwards.


While recharging, you cannot perform any other actions.

Vs. Flying

Vs. Mechanical


Dragons deal 50% additional damage on the next round after bringing a target's health below 50%.


Damage Taken 

50% from Humanoid abilities

33% from Flying abilities

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Rating: +4   [Report]

If you fly, you will die. -Chrominius

Mar 7, 2016 at 3:10am | Edits: 0 | Grizzly Hills-US | Pets: 481 Compare collections | Score: 2182
Rating: +2   [Report]

If not the most awesome pet - at least one THE best one...


Unique appearance, quite large and absolutely adorable!!!

Hard to get solo, the only hard part is to solo Razorgore - rest of the bosses are a walk in the park.


If you aim to solo Razor, the key is to get a few adds on him as possible (3-5, then abandon him - right click his portrait), then try to get aggro from the mobs. If you can heal, you will draw aggro by healing yourself. A HoT helps quite a lot.

Dec 1, 2012 at 1:01pm | Edits: 0 | Steamwheedle Cartel-EU | Pets: 889 Compare collections | Score: 5317
Rating: +1   [Report]

How amazing u are, Chrominius! With Pandaren Water Spirit and Anubisath Idol combat all pets (included Dark Gazer) on Tanan Jungle. I love this team!

Feb 27, 2016 at 4:18pm | Edits: 0 | Aggra (Português)-EU | Pets: 342 Compare collections | Score: 1760
Rating: +1   [Report]

Having a "mini" Howl Bomb team consisting of just Pandaren Water Spirit and Chrominius is usually enough to win most PvE battles. I spent a while getting Unborn Val'kyr and find I rarely use her in day-to-day battles as it takes longer and is usually overkill. A simple Geyser>Whirlpool>Swap>Howl>Surge will generally do the trick. If not, just add a Bite before the Surge and that can sometimes get you over the top for particularly beefy foes.

Jan 10, 2016 at 9:02am | Edits: 0 | Smolderthorn-US | Pets: 635 Compare collections | Score: 3031
Site MVPJenak 
Rating: +1   [Report]

Wonderful pet to have as part of a Howl team - worth the gold! 

(My Howl team: Unborn Val'kyr, Pandaren Water Spirit, Chrominius)


Down with Stitches, Jr!!

Apr 18, 2015 at 8:05am | Edits: 0 | Ghostlands-US | Pets: 866 Compare collections | Score: 5179
Top RaterNoobalator 
Rating: +1   [Report]

Use this guy on the majority of my Beasts of Fable dailies, he's a little powerhouse.

Oct 19, 2014 at 4:35pm | Edits: 0 | Sargeras-US | Pets: 605 Compare collections | Score: 3017
Rating: +1   [Report]

Well, dont tame this boss... like i did. Ill get the loot next week....

Dec 30, 2013 at 2:10pm | Edits: 0 | Azjol-Nerub-EU | Pets: 724 Compare collections | Score: 3795
Top RaterDethstruxion 
Rating: 0   [Report]

Everyone else already said it, get one of these if you can.

It's a great backbone, it can be a good starter, staller or finisher.

Being a Dragonkin, receiving less damage from Flying and his anti-Flying attacks make him especially effective against Flying pets.


Using Arcane Explosion and Blessing, you can last a while before you go out with a bang with Surge of Power. Or powerhouse it with Howl and Surge, or Howl and Ravage. Or use Ravage and Blessing to last even longer.

Choices enough.

Jun 3, 2017 at 1:44am | Edits: 0 | Bronzebeard-EU | Pets: 682 Compare collections | Score: 3315
Site MVPWhitetigress 
Rating: 0   [Report]

I have found Chrominius to be quite a helpful pet in many ways, especially levelling other pets. It just annihilates flying pets, and the dragonkin benefits really assist along the way to give a boost to your longevity in the fights.   


I have found Arcance Explosion (#2 ability, Slot 1) that you can get as early as Pet Level 10 to be a tremendous way to beat down all the members of the enemies team.  There are many times that I'll just use that, along with Ancient Blessing (#2 ability, Slot2) that you can get at pet level 15.   


I used to use Howl in Slot 2, but I found that I could go up against several complete 3 pet teams in a row if I used Ancient Blessing instead.  Plus it helps to give you that little bit of an edge to keep healing yourself while your opponent is getting beat down.   


Slot 3's ability Surge of Power is good especially if you know you are going to die but you'll get that one last hit in!

Mar 16, 2016 at 7:50pm | Edits: 3 | Ravencrest-US | Pets: 636 Compare collections | Score: 3464
Rating: 0   [Report]

Yes , right it was worth the 8 gold I paid for it at the AH.. :)

Sep 24, 2015 at 11:17am | Edits: 0 | Windrunner-US | Pets: 525 Compare collections | Score: 2695
Top RaterTalalara 
Rating: 0   [Report]

Well worth getting a team of this handsome pup!! With 3 of them its the only team which can kick "The Beakinator's" butt! No fuss no muss.

Jan 22, 2015 at 10:10am | Edits: 0 | Thorium Brotherhood-US | Pets: 872 Compare collections | Score: 5213
Rating: 0   [Report]

Can I still get chrominius or do I need to do raiding lvl 100? UBRS is lvl 100 now?

EDIT: NVM I forgot ou can get in from outside

Dec 9, 2014 at 8:43am | Edits: 1 | Darkspear-US | Pets: 272 Compare collections | Score: 1210
Site MVPAbbotta 
Rating: 0   [Report]

Just a hard working guy and reliabe as can be with those Beast of Fables dailes.  I just did those for the first time and I would have to say that it's a tie between this guy and the Kun-Lai Runt as to who was my routine clean-up hitter for those dailes.  They are both hard working pets!

Nov 26, 2014 at 7:05pm | Edits: 0 | Area 52-US | Pets: 804 Compare collections | Score: 4748
Top RaterWrangler 
Rating: 0   [Report]

If have 2 strong pets with him I wiil use him last to eliminate the 2 round cool down on Surge Of Power. lol but not afraid to bring him in at anytime. What a power house.

Sep 9, 2014 at 11:02am | Edits: 0 | Blackwing Lair-US | Pets: 800 Compare collections | Score: 4784
Rating: 0   [Report]

A very powerful pet and an excellent ally! Every serious pet battler should have three!

Jul 31, 2014 at 12:52pm | Edits: 0 | Moon Guard-US | Pets: 40 Compare collections | Score: 217
Site MVPSylvëra 
Rating: 0   [Report]

I bought this pet just this morning after my Flawless Battle Stone sold on the AH (very hapy about the gold I got!), and so far, I like it!  I can't wait to level it.

Jan 9, 2014 at 3:10pm | Edits: 0 | Argent Dawn-EU | Pets: 430 Compare collections | Score: 1996
Top RaterAzarna 
Rating: 0   [Report]

One of the most useful pets in my squad.


Regularly sees action for Beasts of Fable and Pandaren trainer dailies.


When you want a massive bash, Chrominius is the go-to pet

Dec 30, 2013 at 6:52pm | Edits: 0 | Thunderhorn-EU | Pets: 647 Compare collections | Score: 3312
Rating: 0   [Report]

One of my favorite pets. Howl and Surge of Power are awesome for taking on pretty much any tamer, but they're especially helpful for the Beast of Fable dailies. Start with Chrominius, and in two rounds, they're halfway dead.

Nov 2, 2013 at 8:17am | Edits: 0 | Kel'Thuzad-US | Pets: 442 Compare collections | Score: 1892
Top RaterBeana 
Rating: 0   [Report]

This pet is wonderful for killing flying... Including on Pandaria trainers. You can't beat howl :)

Jul 27, 2013 at 12:24pm | Edits: 0 | Hyjal-US | Pets: 914 Compare collections | Score: 5469
Rating: 0   [Report]

I remember the first time i seen this my boyfriend won it. But after 3 weeks of trying he finally dropped and i was so happy! This really is an amazing pet everyone should have one for their collection!

May 30, 2013 at 12:01pm | Edits: 2 | Zul'jin-US | Pets: 97 Compare collections | Score: 436
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Opponents that face this fierce chromatic monstrosity just hope it doesn't have Time Stop!
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