Merrymaker

Full list on how to do this Achievement:

On Metzen - Complete Metzen the Reindeer

Scrooge - Simply throw a Snowball at Cairne Bloodhoof at Thunder Bluff.

'Tis the Season - Eat a Graccu's Mince Meat Fruitcake while wearing Green Winter Hat/Red Winter Hat , Green Winter Clothes/Red Winter Clothes , and Winter Boots

Simply Abominable - Complete You're a Mean One...

Bros. Before Ho Ho Ho's - Use a Mistletoe on Brother Malach in the Undercity, Brother Keltan in Icecrown on Ogrim's Hammer (The Horde Zeppelin that patrols), and Durkot Wolfbrother in Warsong Hold.

He Knows If You've Been Naughty - Open a present under the Winter Veil tree.

With a Little Helper from My Friends - Get 50 Honorable Kills in any Battleground while under the effects of PX-238 Winter Wondervolt

Fa-la-la-la-Ogri'la - Complete the daily quest Bomb Them Again! while your mount is affected by Preserved Holly or Fresh Holly

Crashin' & Thrashin' - Gain 25 crashes with your Crashin' Trashin' Racer with other players. You get the Racer on Christmas under the tree.

Let It Snow - Use a Handful of Snowflakes on an Orc Death Knight, Tauren Shaman, Undead Rogue, Gnome Mage, Blood Elf Warlock, Human Warrior, Night Elf Druid, Troll Hunter, Dwarf Paladin, and Draenei Priest

The Winter Veil Gourmet - Cook up a Gingerbread Cookie, Egg Nog, and a Hot Apple Cider. This requires a Minimum 325 cooking to make the cider.

A Frosty Shake - Use a Winter Veil Disguise Kit in Dalaran and dance with another player using the item.

Note: Crashin' and Thrashin' has been removed from the meta-achievement due to the fact that it was the 2008 gift, much like the Clockwork Rocket Bot was the 2007 gift.

Edit: Stop downrating useful information >:(

Hi all

Welcome to the Christmas event [event=141]. The Christmas event includes 17 Achievements. When You will done Merrymaker you will reache [title=134] Account-wide.

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Treasures Name:

Description

Video link

1 Merrymaker

Do Achievements from 2-12 to reach it with [title=134] Account-wide.

2 On Metzen!

"You need to do in order:
- Pick Up Quest You're a Mean One... from [npc=13433] 33 67 in Ironforge.
- Fly to Hillsbrad Foothills and move to 43 38 to slay [npc=54499] after that free [npc=15664] is next to cave and Pick Up [item=17662] in enter to cave ( is pop up after kill for 5 min ).
- Fly back to [npc=13433] 33 67 in Ironforge."

https://youtu.be/vQefELMPnAQ

3 Scrooge

"You need to do in order:
1. Buy [item=17202] from [npc=13433] 33 67 in Ironforge.
2. Go to Muradin Bronzebeard and use [item=17202] on Him ( Blizz has no heart, He is not even throwing back ;/ )"

https://youtu.be/-xBkbzx00As

4 'Tis the Season

"You need to do 4 thinks:
1 Find [item=21524] or [item=21525]. I drop this item from [npc=26731] 2nd boss in [zone=4265] on Heroic mode.
2 Craft or buy Green Winter Clothes or Red Winter Clothes ( they need to be green color , white will not work ). To craft need Tailoring recipe you can buy from [npc=13435] in SW 62 70.
3 Craft or buy Winter Boots ( they need to be green color , white will not work ). To craft you need Leatherworking recipe you can buy from [npc=13435] in SW 62 70.
4 Graccu's Mince Meat Fruitcake that can be find inside [item=116762] or [item=149503]. You can by Cake from [npc=13435] in SW 62 70.
First put on clothes then eat cake :)
"

https://youtu.be/HFXu1dtL73w

5 Let It Snow

"You have 2 steps:
1. Get [item=34191] from Winter Reveler use /kiss on Her ( i done it in Dalaran WOTLK 43 63 as well She can give you 2 other items [item=21212] or [item=21519] ). You can get maximum 5 but you need 10 You will need to come and try in next hour to get 5 more.
2. Use [item=34191] on each of the race/class combinations listed below:
- Orc Death Knight - Tauren Shaman
- Undead Rogue - Gnome Mage
- Blood Elf Warlock - Human Warrior
- Night Elf Druid - Troll Hunter
- Dwarf Paladin - Draenei Priest
I done it in Oribos as well You can do it in Dalaran but i think now in Oribos is much more players ( In future will be a City from new update )."

https://youtu.be/DGSVEGkNon0

6 The Winter Veil Gourmet

"You need to Cook 3 recipes ( all them you can buy from [npc=13433] 33 67 Ironforge ):
1 Gingerbread Cookie Ingredients needed to do:
- 1 Small Egg - I farm it from [npc=44184] in Loch Modan 51 61 or You can Buy them on AH.
- 1 Holiday Spices - Selling By [npc=13433] 33 67 Ironforge
2 Winter Veil Eggnog
- 1 Small Egg
- 1 Holiday Spices
- 1 Holiday Spirits - Selling By [npc=13433] 33 67 Ironforge
- 1 Ice Cold Milk - Selling By [npc=5111] 18 51 Ironforge inside Inn.
3 Hot Apple Cider
- 1 Holiday Spices
- 1 Holiday Spirits
- 1 [item=34412] - Selling by [npc=13434]
In TOTAL:
2 Small Egg - farm it from [npc=44184] in Loch Modan 51 61 or You can Buy them on AH.
3 Holiday Spices - Selling By [npc=13433] 33 67 Ironforge
2 Holiday Spirits - Selling By [npc=13433] 33 67 Ironforge
1 Ice Cold Milk - Selling By [npc=5111] 18 51 Ironforge inside Inn
1 [item=34412] - Selling by [npc=13434]"

https://youtu.be/2CXIBOExrEI

7 A Frosty Shake

"First You need to finish Quest You're a Mean One... after 24h you will get letter with [item=17712].

Then Go to buy [item=17202] you need it to use toy ( I buy [item=17202] from [npc=13435] in Stormwind 63 70.

Go to Dalaran ( i done in WOTLK ) and use [item=17712] to next to other Snowman, mark him after transform and type /dance"

https://youtu.be/Zz8zdWL0gaA

8 With a Little Helper from My Friends

"You need to do in order:
1. Take Buff. You can find it out side Ironforge 60 33. Just get inside Winter Wondervolt machine and you will get transform with buff [spell=26157].
2. Join Battle ( press I -> PVP -> Quick Match -> Specific BG -> Pick Isle of Conquest or Battle for Wintergrasp They are best to do it fast. Be care if you die you lose buff and you need to pick it up one more time.
3. Earn 50 honorable kills. Stay on back that will make it faster :).

After Earn 50 You will reach Achievement."

https://youtu.be/F6ATfF4WWj8

9 Fa-la-la-la-Ogri'la

"Do in Order:
1. Get [item=21212] from Winter Reveler use /kiss on Her ( i done it in Dalaran WOTLK 43 63 as well She can give you 2 other items [item=21519] or [item=34191] ) or [item=21213] from [item=21327].
2. Fly To Blade's Edge Mountains in TBC ( use portal in Stormwind to Shattrath City ) And take Quest The Crystals from [npc=23233] 29 57, go collect 5 [item=32569] ( is drop from all mobs around or pick up from crystals ).
3. Do Quest Our Boy Wants To Be A Skyguard Ranger from [npc=23316] 28 57 in Blade's Edge Mountains. Get 10 [item=32569] then fly to [object=185919] 32 40 and create Unstable Flask of the Beast and go back to [npc=23316].
3. Pick up quest The Skyguard Outpost from [npc=23233] 29 57, Fly to see [npc=23334] 27 52 in Blade's Edge Mountains.
4. Pick Up Quest Bombing Run from [npc=23120] 27 52. Fly north around 33 40 and use [item=32456] on a pile of cannon balls. YOU NEED TO BY ON FLY MOUNT
5. Use [item=21212] then Pick Up Quest Bomb Them Again! from [npc=23120] 27 52. Fly north around 33 40 and use [item=32456] on a pile of cannon balls. YOU NEED TO BY ON FLY MOUNT
"

https://youtu.be/VfuAHgz7zSk

10 Simply Abominable

"You need to do quest A Smokywood Pastures' Thank You! ( before will be You're a Mean One... )
A Smokywood Pastures' Thank You! You taking from [npc=13433] 33 68 and complete to [npc=13444] 32 65 all in Ironforge."

https://youtu.be/e97Vagm5CVQ

11 Holiday Bromance

"You have 2 steps:
1. Get [item=21519] from Winter Reveler use /kiss on Her ( i done it in Dalaran WOTLK 43 63 as well She can give you 2 other items [item=21212] or [item=34191] ). You can get maximum 5 but you need 8 You will need to come and try in next hour to get 5 more.
2. Use [item=21519] on:
- I start from [npc=739] He is in Northern Stranglethorn 47 11 in Rebel Camp,
- [npc=927] on back of Blackshmit in Goldshire 41 65 Elwynn Forest.
- [npc=1444] 54 54 near the fountain in Cathedral Sqare Stormwind City.
- [npc=5484] Inside Cathedral
- [npc=5489] Inside Cathedral
- [npc=1351] Inside Cathedral
- [npc=12336] Inside Cathedral in the basement
- [npc=8140] 67 47 in Theramore Isle Dustwallow Marsh ( Use ship in Wetlands to get there ).
"

https://youtu.be/67tWznTtdXQ

12 He Knows If You've Been Naughty

Christmas tree is in in Ironforge 34 66. It start on 25/12 I pick up my present at 09:00 a.m. UTC ( 04:00 EST ) I pick up 5 presents Get 2 pets 1 toy and 1 formula: [item=178530], Formula: Enchant Weapon - Winter's Might, [npc=151780], [npc=15710] and other stuff

https://youtu.be/9Aol1Y4ad2A

13 BB King

"You need to Shoot the enemy leaders.
First You need to buy [item=46725] and [item=48601] ( I buy it from [npc=52358] He is walking around The Trade District in Stormwind )

Then You need to find 4 enemy leaders and use on them [item=46725]:

- Garrosh Hellscream in Orgrimmar inside buldin location in city 48 70
- [npc=16802] in Silvermoon City inside bulding, location in city 54 20
- [npc=10181] in Undercity location in city 58 91 ( enter to Undercity is 50 70.
- [npc=36648] He was on list But now He is in Oribos and you can't use on him [item=46725] on 18/12/2020 was removed from lins. But just in case if He will come back on list You can find him in Thunder Bluff 60 51 city location."

https://youtu.be/LjWJm00-Zdg

14 A-Caroling We Will Go

"You need to go to 4 cities and use [item=70923]. [item=70923] You can buy from [npc=13433] 33 67 in Ironforge. You need to be in zone of this cities.

4 Citis:
- Orgrimmar Fly inside and use even on the roof of the building
- Undercity You dont need to fly inside city You can do it over it.
- Thunder Bluff Fly inside and use even on the roof of the building
- Silvermoon City (Burning Crusade) You can't fly over there you can try use next to gate kill guardians or just run inside like i done.
"

https://youtu.be/J7txPBmvBuY

15 Crashin' & Thrashin'

16 The Danger Zone

17 Iron Armada