Turns any block into an update suppressor.
When a block update reaches the block you designated, the update cascade is interrupted.
How to use it:
Command /updatesuppresorblock:
/updatesuppresorblock minecraft:bedrock → designates that block as a suppressor
/updatesuppresorblock none → disables it
/updatesuppresorblock → displays the current block
Notes
Not all blocks work: simple blocks (bedrock, stone, etc.) work, but not those that handle their own updates (redstone, observers, pistons). Bedrock is the classic choice.
It resets to “none” when the world or server restarts; use the command again.