I see what you mean but to speed run in two and get a 100 player kills would be pretty hard unless you get a friend and just kill each other over and over again which i think is cheap.
~ @M0W0G
Can't you only tp someone once a day or something, not much of a speedrun then tbh? After suggesting the achievements, and looking at how many people actually play the minigame, I too suggest removing the 100 kills achievement. 10 is hard enough. But -1 to UHC mastery being 200k reward, 50k at most.
Edit: I mean 100k at most