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Bedrock breakers

Open a hole in the Nether roof's top layer from above, or clear a strip of it, in survival, without lag, TNT or luck.

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Bedrock breaker: removes a bedrock block of the Nether roof

Arms a piston standing on the bedrock every 6 game ticks; one key press (Attack and Use on the same key) at that moment swaps it for a piston facing down, and the bedrock under it disappears.

1 bedrockBedrock breaker
1 bedrock · 11 blocks
fits in 3×3×4
7 versions

A card that comes in several sizes lists every size, with the best design of each, on its page.