Axe. You can see your time after you win. It tells you what your time is, no matter what. If you're killing yourself just to constantly retry until you luck out and get the achievement, that's stupid. You literally have no argument other than stating that you want to use the thing I call an exploit.
If you try and beat the boss, you get to try again tomorrow.
If you failed mid-fight you get to retry. Enabling cheaters to cheat by allowing them to let themselves die to keep trying for the achievement is cheating. Cheaters.
I'll say again: I wouldn't MIND a timer, but I wouldn't be taking even half of a second mid-match to look at it. Plus, not everyone is as trustworthy as others.
If you try and beat the boss, you get to try again tomorrow.
If you failed mid-fight you get to retry. Enabling cheaters to cheat by allowing them to let themselves die to keep trying for the achievement is cheating. Cheaters.
I'll say again: I wouldn't MIND a timer, but I wouldn't be taking even half of a second mid-match to look at it. Plus, not everyone is as trustworthy as others.