Algalon the Observer

Patch 7.1 brought with it a new version of Raiding with Leashes: Part IV - Wrath of the Lich King, but this time with a twist!
Once you collect (or get traded) all the pets for this achievement, instead of receiving a pet reward directly, you instead receive a Celestial Invitation, which asks you to seek out Algalon the Observer himself.
It turns out he secretly tamed some super cute celestial pets and now you need to defeat him, with your own pets!

Quintessence and Pat0ford were among the first to test this fight on the PTR and created strategies, that are listed here with their permission. On Quintessence's blog Perks N Peeves you can also find more details on the fight, while Pat0fords Videon shows you the fight itself. The strategies you can find if you click on Algalons name on the left menu.

Once you defeat him, you will then finally receive your reward, which is the celestial bunny Stardust

Deydrania wrote on 05/15/2017

This is almost devoid of RNG. I tried it over and over and over again. I worked out all of the bugs and made it almost perfect.

1. Zandalari Ankerender 2/2/2
2. Emerald Proto-Whelp 1/1/2
3. Mechanical Pandaren Dragonling 1/1/2

Ankerender: Primal Cry / Black Claw / Hunting Party (Anklerender dies, but Opponent is almost dead)

Emerald Proto-Whelp: Breath immediately and finish off Opponent. Comet dies.
Bunny comes out
Immediately cast Emerald Dream. Now you're in a rotation- DO NOT DEVIATE
Once Dream ends: Breath / Ancient Blessing / Breath / Dream
Breath / Ancient Blessing / Breath / Dream
Until Bunny dies.

NOTE: While Proto-Whelp is asleep in Dream, Bunny cannot force a pet swap. So stick to the rotation and you'll keep the proto-whelp active.

Now final pet comes out: Continue Rotation until Proto-Whelp dies.
Pandaren Dragonling comes out: By now, you should have anywhere from 2-5 rounds left until the meteor hits and ends the battle. your job is to stay alive

Cast Decoy. Do whatever you want and wait out the end.

rikapi responded on 05/18/2017

Thanks for this strat - I was missing at least one pet of all the ones in the main pet battle article and was wondering what to do when I saw this!

On the first try Bunny kept critting my Proto-Whelp and I lost, but on the second try Proto-Whelp stayed alive till meteor hit so Dragonling didn't even have to come out!

Cher responded on 05/25/2017

This strat worked perfectly first time; so thank you for sharing! :)

Cataerei responded on 06/04/2017

First two times I tried this my proto-whelp died early due to unfortunate crits. Worked perfectly the third time. Great strat!


responded on 06/12/2017

Thank you, I added this as a strategy :-)

Brizz responded on 06/17/2017

Thank you for sharing an excellent, successful strategy. On my first attempt Comet died too soon and one more attack from my Anklerender threw the entire progression/rotation out of the window, but my second try worked exactly as you describe except my Emerald Proto Whelp survived until the meteor landed so I didn't need my Dragonling at all.

gratugu responded on 07/24/2017

This strategy is purely RNG for the hopes while your barely holding on no crits hit to take you out. 10 plus pulls and counting corrently.

Lorieth responded on 07/25/2017

I tried 5 different strategies/pet combos for over an hour, trying to down Alganon's pets. This strategy list above worked for me first time. My Mech Dragonling didn't even enter battle. My Proto-whelp died just before the meteor hit.

Anonymous responded on 08/13/2017

One shot it with this excellent strategy. Ended up not needing MPD because my EPW was never in any danger of dying prior to Meteor going off. Well done!

Anonymous responded on 08/24/2017

Thank you so much for this awesome strat!! <3

Sockarms responded on 09/26/2017

Worked great MPD never needed

Tutonik wrote on 01/19/2017

I found for Cosmos that a fast Flayer Youngling 121 works pretty well.
Kick, blitz, shield, blitz, Kick...
Has to be fast to stun Cosmos. Have fun. I've had the Flayer at 50% left and also not make it due to crits. A good kick to the head slows most things down.

Maui-Turtle wrote on 12/23/2016

Did this with Zandalari Anklerender, Lil' Bling, & Emerald Protowhelp (put whelp in 2nd,

Anonymous wrote on 12/07/2016

Love your website! Just curious--have you noticed the achievement is actually Raiding with Leashes IV: Wrath of the "Lick" King? I think most people missed it. It made me laugh so I thought I'd mention it.


responded on 12/07/2016

Oh my god... I did not notice it either. That is an amazing little "easter egg" hidden in plain sight :D

Alex the Aggro Goddess wrote on 11/12/2016

Algalon is OUTSIDE of Ulduar at 41.5, 24.2. That is on the steps leading up to the raid. Yes I cleared all the way to him in the raid only to find he was not inside :(. Hope this helps you get it done faster!

Onebaddude wrote on 11/11/2016

I didn't have many of the pets here, but here's what I did:

Pets were: Zandalari Anklebiter (2/2/2), Son of Sethe (2/1/2), Lil' Bling (2/1/2, though 2/2/2 might be better)

Zandalari Anklebiter (I didn't have S/S, so I went with what I had): Primal Howl -> Black Claw -> Hunting Party
Son of Sethe: I leveled this pet just for this fight): Drain Blood (to finish first pet) -> Screech (to slow the second pet)
Lil' Bling will get pulled into battle: Make it rain -> Inflation -> Make it rain (just try to do damage until Son of Sethe gets pulled back in, Lil' Bling had around 70 health after the mechanical revive when Son of Sethe was pulled back in, it is vital to winning that Lil' Bling doesn't die)
Son of Sethe: Drain blood (I think this killed the second pet) -> Plagued blood (x2 if the second pet isn't dead at this point and the first comes out)

Then for the final pet, I followed others' advice that use its Apocalypse to win. The priority becomes Drain Blood (especially with moonlight still up) -> Screech if the speed decrease isn't already up (otherwise lowest it's the lowest priority) -> Plagued Blood

Thanks, and I hope this helps if like me you don't have many holiday pets nor rare ones.

Anonymous responded on 11/11/2016



responded on 11/13/2016

It does work indeed, and is now added as an alternative: http://en.wow-petguide.com/index.php?m=Algalon&s=340&a=4

Anonymous responded on 12/17/2016

It worked like a charm for me today

Sereza responded on 04/08/2017

Just commenting here to say that this worked for me!! I tried so many strats from WoWhead but none of them worked for me- with the exception of the macabre marionette... I didn't have that one. Thank you SO much! It took me many tries through crit RNG but it finally worked. Thank you, thank you, thank you!

Anonymous responded on 05/24/2017

it may work(no luck yet with it), but unless things have changed since the post: There is no such spell as "screech' and although he said to use "Son of Sethe (2/1/2), "..he then called to use Drain Blood which is in the 3rd slot but no. 1 spot; and that can cause a catastrophe. I'm worried this means that things have just changed since the strat was originally posted.

Anonymous responded on 08/06/2017

heres is a video of this method working https://youtu.be/4bGmjtgev40

Mhystral -aerie peak wrote on 11/09/2016

I didn't have the infested cub leveled so i was having trouble since the emerald whelp kept dying anyways even if i switched it, so i found a great combo that saved my ass. I simply needed something that would hang in there till apoc. I did zandalari anklerender and used his primal cry first, then black claw and stampede. Its ok if he dies. Take emerald proto use breath then right away use dream for when the bunny comes. Do the healingtechnique as previous posts. It's ok if he dies. Then marionette for the third per. Use syphon and maracas, alternate. Just hang in there. You will sirvive for a bit enough to win the encounter.

Anonymous responded on 02/18/2017

I never had to even use the Marionette, easy win. Thanks!

Stardust killer wrote on 11/08/2016

1. Zandalari Anklerender
2. Weebomination#1
3. Weebomination#2
(For Comet) Black Claw, Hunting Party, Leap, then Black Claw until dead.
(For Cosmo and Constellatius) Death Grip Constellatius into battle and keep Cleave on both Cosmo and Constellatius, switch to your Weebom#2 when your Weebom#1's health is low, at which time the Apocalypse should only have 3-4 rounds left. Weebom#2 still stands with Constellatius' death due to Apocalypse. Weebom#2 casts Corpse Explosion on Cosmo, leaving Cosmo's health around 300. Finally easy kill with Weebom#1 with Cleave.

Anonymous responded on 11/09/2016

Cleave does 70 dmg, Weebo isn't able to survice long enough to deal enough times 70 damage... Not in a thousand years, atleast for me

Junior wrote on 11/04/2016

1. Macabre Marionette 121
2. Onyxian Whelpling 211
3. Son Of Sethe 121

1.Siphon Life - Dead Man's Party - Macabre Maraca (Till you both die)
2.Lift-Off - Tail Sweep - Healing Flame - Tail Sweep - Tail Sweep - Lift-Off
3. Just use whatever healing you need to stay alive for 15 rounds.

Moogles responded on 11/07/2016

This strat worked wonders for me, more reliable rng than the marionette/proto-whelp/bear strat

Flyleaf wrote on 11/04/2016

Really easy fight with Unborn Val'kir, Emerald Proto Whelp (full damage) and a simple rabbit. Oneshot :)

Christine responded on 12/08/2016

HOW Flyleaf??? I actually have all those things levelled. Can you tell me what you did pretty please? :)

MighyTG wrote on 11/03/2016

I used Menoruna's attack, except i did it with just the first two pets. I skipped the Siphon Life and brought in Deadmans party first round to get that double damage going.
As follows:
Macabre Marionette
-Deadmans Party
-Macabra Maraca (until you both die)
Emerald Proto Whelp
-Emerald Dream
-Ancient Blessing
(Repeat these four until the entire pet battle is over.)
My 3rd pet never came into battle, just make sure its not a flyer so the magic AOE doesnt kill it if it crits.

Drakuul responded on 11/10/2016

this didnt even work at all


responded on 11/13/2016

This is the strategy from Quintessence and is available here: http://en.wow-petguide.com/index.php?m=Algalon&s=340&a=1

Rose wrote on 11/02/2016

Hello, I found Graves to also be a very effective pet against Constellatius. :) I did the first strategy, Macabre, Emerald (drake died though) and Graves ended with full health almost when the Apocalypse hit.

Menoruna wrote on 10/31/2016

This team is what I used:

1. Macabre Marionette - 121
2. Emerald Proto-Whelp - 112
3. Infested Bear Cub - 122

Start of with Macabre:
Round 1: siphon life
Round 2: dead man's party
Round 3: Macabre maraca
Round 4: Macabre maraca
- Cosmos comes in
Round 5: Emerald dream
Round 6: Ancient blessing
Round 7: Breath
Round 8: Breath
Round 9: Emerald dream
Round 10: Ancient blessing
Round 11: Breath
Round 12: Breath
Round 13: Emerald dream
Round 14: Ancient blessing
Round 15: Breath
Round 16: Breath
- Cosmos should die and Constellatius will come.
Round 17 and on.. Just keep using
Emerald dream and Ancient blessing no dmg needed.
Constellatius will put Apocalypse on your team and will
destroy all pets after 15 turns ( including himself.


Kron wrote on 10/29/2016

Better Team & Strat for Algalon (Live)

Zandalari Kneebitter S/S - against (Comet) the celestial dragonling
Black claw, Hunting Party, Bloodfang, then Black Claw till forced swap or dead.
Direhorn Runt H/H - against (Cosmo) the celestial rabbit
Stampede, Trihorn Charge
Infested Bear Cub – against (Constellatius) the celestial hippo
Hibernate on cool down, and pass all other rounds until apocalypse hits and kills the pets, yours is undead=win

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