Elixir of Digging

The Elixer [sic] of Digging is an elixir added by Xeno's Reliquary mod and acts in the same way as a potion. When the player drinks it, it gives the player the Haste II Buff for 5 minutes allowing them to break blocks faster. This is one of the best ways to get the haste buff in Hexxit, which is very helpful for mining out large areas.

Crafting

Shapeless