Skip to content
WOWARCANA
Midnight
Midnight
Forever
Forever
Mists of Pandaria Classic
MoP Classic
Search
the site
EN
RU
Sign in
Checking account…
Characters
Classes
Classes and specs
Talent trees
Death Knight
Demon Hunter
Druid
Evoker
Hunter
Mage
Monk
Paladin
Priest
Rogue
Shaman
Warlock
Warrior
Mythic+
Mythic+ atlas
Timers and routes
Meta
Mythic+ meta
Top specs of the week
Team compositions
Groups that time high keys
Route finder
Runs of groups like yours
Season
Season 2 guide
Raid, keys, delves
Season stats
Rating cutoffs
Leaderboard
Top players
Dungeons
Ruby Life Pools
Altar of Fangs
Murder Row
Den of Nalorakk
The Blinding Vale
Voidscar Arena
Kings' Rest
Temple of Sethraliss
Raids
Raid journal
Bosses and tactics
Lairs and world bosses
Outdoor encounters
Raid composition
Buffs and roles
Midnight raids
The Unbinding of Kith’ix
The Venomous Abyss
The Voidspire
The Dreamrift
March on Quel'Danas
Sporefall
Tier lists
Tier lists
Mythic+, raids and arena
Modes
Raids
Arena 3v3
Arena 2v2
Solo Shuffle
Blitz
Tools
World map
Azeroth through the eras
Auction House
Realm and region prices
Professions
Leveling and profit
Transmog Studio
Outfits from any look
Professions
Alchemy
Blacksmithing
Enchanting
Engineering
Inscription
Jewelcrafting
Leatherworking
Tailoring
Herbalism
Mining
Skinning
Cooking
Fishing
Library
Game library
Items, spells, mounts
Collections
Items
Weapons
Armor
Gems
Spells
Mounts
Battle pets
Toys
What's new
World of Warcraft
Library
Loading…
Library
Loading…
Murderous Efficiency — WowArcana Library
Library
Spells
Murderous Efficiency
Spell
Murderous Efficiency
Share
Murderous Efficiency
Instant
50000 yd range
Grants the Death Knight 1 rune.
