BuildHelper Mod (1.17.1, 1.18.2) adds a variety of wand items. These wands are useful for quick and easy building walls, filling in ditches and valleys with water, creating islands, digging shafts, and removing mountains. Only standard blocks work with the exchange wand. Some blocks can have unexpected exchanges. Flowers will not exchange properly with roses or dandelions, but only basic vanilla flowers.
Buildhelper allows you to modify and manipulate the environment around you. With a swipe of a wand, you can quickly create walls or empty large water bodies. You can build a wall from any block by crafting a Gap Filler Wand. Simply select the block you wish to use with it and two coordinates that show the wall’s shape. You can also make a huge cube from it depending on where the second coordinate is placed.