Efficiency is a tool enchantment that dramatically increases mining speed. This enchantment can be obtained through enchanting tables, villager trading, and loot chests found in structures like ancient cities, bastion remnants, and trial chambers.
Efficiency comes in five levels, with most tools receiving up to level V through enchanting tables. Stone and diamond tools cannot reach Efficiency V at an enchanting table, while diamond tools with maximum Efficiency can be found in end city and bastion remnant chests.
This enchantment proves invaluable for mining operations, terraforming projects, and efficient resource collection. Efficiency V significantly reduces mining time for appropriate blocks. The enchantment only works when using the correct tool for each block type, emphasizing the importance of proper tool selection for maximum mining Efficiency.