This page will explain all all the Pickaxe upgrade within the bot
Upgrading your Efficiency allow your !Mine to have a lower cooldown, for example level 1 Efficiency has a 9 second cooldown.
Upgrading fortune will allow you to gain more Ore/Block per !Mine.
Mine bomb sets a bomb of within mine giving you X amount of block depends on your mine bomb level.
Upgrading your token booster will allow you to gain more tokens while mining.