When you explode an end crystal that has been placed on bedrock with this pack enabled, it will also explode the bedrock. While more expensive then the tnt and headless piston glitch, this is both faster, more reliable, and does not require any external tools.
Example: How to use for the nether roof:
Resources needed:
- Lots of End Crystals
- Bow and Arrows
- Blast Resistant Blocks - i.e. Deepslate
- Food
- Pickaxe
- Flint and Steel
Optional:
- Blast Protection Armor
- Ladders or Scaffolding
- Elytra and Fireworks
Step 1:
Place the end crystals with one block of space in between them.
Step 2:
Run a significant distance away, then shoot the crystals with an arrow.
Step 3: Repeat. If a end crystal being placed is blocked by an item on the ground, very carefully remove it using your flint and steel. Once the crystals are completely recessed, you can build a tower with ladders or scaffolding to shoot at the crystals.
Demonstration video: Making a 5x5 hole in the nether roof
