The Witcher 3: Wild Hunt
78 Achievements
2,000
157.5-196h
Butcher of Blaviken
Kill at least 5 opponents in under 10 seconds.
30
35.7%
How to unlock the Butcher of Blaviken achievement in The Witcher 3: Wild Hunt - Definitive Guide
you can use Igni sign to kill 5 rat at once,
I got the achievement in a side quest called 'A Towerful Of Mice'.
Triss will ask you to help her find a mage couple that's missing or meet with the rest the mages she's helping underneath kingfishers to help clear out the sewers for safe passage.
You have to choose meet with the rest of the mages and not save the two people(not the exact wording but it's explanatory).
This will eventually lead you into the sewers where you will come across a swarm of rats after leaving the library.Aggro as Much as you can to be safe then fire away Igni and the achievement is yours.
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It may help if you have the quick attack skill levelled up and equipped.
During this quest you'll come cross a rat breeding ground. Someone will drop a corpse from the ceiling and rats will swarm it. If you let Triss go in first the rats will swarm her. Use igni and kill them all after she's amassed a crowd by her feet.
During the Quest 'Lilac & Gooseberries', after your fight with the Griffin, you meet your colleague back in the White Orchard tavern.
After a cut-scene you are set upon by some guys in the tavern - and it is here that I unlocked this.
During the quest I had earnt extra ability points by doing side-quests and fighting low-level enemies (drowners, wolves etc), and finding a few Places of Power.
I put an Ability Point into the "Fireball" Sign (cannot remember the name), and come this fight the extra power, plus their close vicinity, meant once I had used that and swung my sword a few times I had easily defeated them all.
A great place to earn this, is at the Hanged Man's Tree Fast Travel Point on the Velen Map. That's the point in the middle of the map where you enter Velen for the very first time. Near the fast travel point there's a pack of level 1 wolves. Block their attacks until they are all in front of you, then use the Igni sign to kill them instantly. When holding down the block-button they cannot hurt you.
Also be sure to create a save game before trying this. In case you fail you can reload your save game and try again. You can also make the wolves respawn by fast traveling to another map (away from Velen).
One of the earliest/best opportunities that you’ll have to attempt this achievement, as well as "Can’t Touch This", will be at the Hanged Man’s Tree fast travel point in Velen. Near this fast travel point, there's a pack of Level 1 wolves nearby in the fields. Go ahead and approach the pack while blocking their attacks. Remember that holding down the block button will render their attacks useless since you can’t take damage.
Once the entire group is in front of you, cast Igni to kill as many wolves as possible, then wipe the remaining wolves out with some quick swings of your sword. If you managed to kill all five to six wolves within ten seconds while remaining unscathed, both achievements will unlock right away. Keep in mind that the wolves will respawn here all the time, so if you fail your attempt, you can always return to this spot later on in your playthrough.
When you block a blow, the damage does not go through to you. If the wolves all died and you did not manage to get the trophy, then simply move to another map from Velen and then back, the wolves should appear.
If you don’t understand something, here is a detailed video hint