Grimrock

I read that Master Assassin is supposed to instantly kill with back stabs. I tried it on an , didn't kill it. I was using a sword. So, how exactly does it work?
Does it instakill just some enemies?
Does it need a specific weapon type?

Dagger

https://www.youtube.com/watch?v=WWaLxFIVX1s

Damn it. I have one I can't use and another one I can use but left it somewhere god knows where. And I'm such a hoarder, I held on to this dagger for many, many floors, then decided to drop it. If only I hadn't wasted 7 points on dodge, I would be able to put those points on the Dagger skill equip this awesome dagger I found.

Time to find a character editor online.

you can just open the console and type in:
spawn("dagger")

BackStabber wrote:I read that Master Assassin is supposed to instantly kill with back stabs. I tried it on an

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ice lizard

, didn't kill it. I was using a sword. So, how exactly does it work?
Does it instakill just some enemies?
Does it need a specific weapon type?

It works perfectly, if you succeed a backstab hit. I do not remember, though, if you need a dagger, or you can do it with a sword as well!
What I remember, though, is that there are some enemies, like the wardens, in the final level, who are immune to instant death!