CursedBlocks

Every two minutes, a block type gets cursed. Touch it and you die.

5 seconds before the switch, everyone gets a title screen warning and a chat message. The sidebar tracks the current cursed block and the incoming one once it's decided. The actionbar counts down normally, then flips to a proximity alert if you're standing near a cursed block.

Creative and spectator players are immune and excluded from the block scan.

Commands

Command	Description
/cb start	Start the game
/cb stop	Stop the game and clear the scoreboard
/cb skip	Force the next block immediately
/cb set <block>	Force a specific block
/cb status	Show current block and time remaining
/cb list	Show top 10 blocks from the last scan
/cb reload	Reload config.yml

Installation

Drop the jar into your plugins/ folder and restart.