Heyho, I am playing Skyfactory 2.5 atm, and there is the mod Better Builder's wands present. This mod features the command /wandOops, that removes the blocks you last placed with the wand and gives them back to you. I personally think, this command should be available to players, because we all already had to mine a huge area just because of 1 misclick... Thx, kindlich
I can see that as incredibly useful. How many times has there been a bit of lag or unresponsiveness with your client, you've clicked twice to put blocks down, and suddenly you have an extra wall in the wrong spot.