Was wondering today how to get this achievement...
"Indiscriminate Slayer : If small things were meant to live, they’d have bigger teeth or faster feet."
because you need 10,100,500 and then 1000 kills for the Tier 4 Achievement.
Found an amazing place in the Wayfarer Foothills which is called "Hangrammar Climb" ( theres a waypoint directly in front of it) where alot of ravens are at an insane spawn rate
Got the achievement pretty fast there
Good luck!