MercuryBasics provide Placeholder who can be used with PlaceholdersAPI
Placeholders List :
%mercurybasics_kills_player% -> Return kills of a player.
%mercurybasics_deaths% -> Return deaths of a player.
%mercurybasics_ratio% -> Return ratio of a player.
%mercurybasics_mob_kills% -> Return the amount of mob killed by a player.