Suggestions

I suggest making a command like /kill top to display the top player who have the most kills, /death top to display the top deaths, and /player top to display the best players according to there ELO rating.

please make getting mob hunt event keys like this : 1st place-3 keys
2nd place-2 keys
3rd place-1 key
its random now like it doesnt matter even if u get 1st place you can get less keys than 3rd place or less than 2nd place

Armor stands with arms should be added in survival