I'm not sure if you guys know what UHC is, so I'll give a brief explanation: Ultra Hardcore is a game mode invented on the Mindcrack server, a server where a lot of popular YouTubers play. Players are spread out randomly, sometimes solo and sometimes on a team, and the goal is to be the last person/team alive. Natural health regeneration is turned off and the only way to regenerate health is through golden apples or health potions. Regeneration potions are banned due to the relative ease of obtaining them and their OP'ness in such a game mode. It's similar to Survival Games, though the matches generally take longer and require more strategy and planning. You start with no gear and are tasked with gearing up as best you can in order to defeat the other players.