Risk of Rain 2 shares the vast majority of its repertoire of items with its direct predecessor, the 2D shoot-em-up Risk of Rain. One particularly interesting returning item is the Crowbar, and it's also a mainstay in many inventories.
Risk of Rain 2 Crowbar increases the damage you deal to healthy enemies, thus making it a great pick for characters and skills that dish out extreme amounts of damage in just a single hit. In regard to finding the Crowbar, though...
Risk of Rain 2 Crowbar Location
Just like virtually all other items in Risk of Rain 2, your chances of finding a Crowbar are entirely up in the air. Good thing is that the Crowbar is a common item, which means that there's virtually no way for you to keep avoiding it over a prolonged period of time. The Crowbar will often appear in shops, with sometimes even more than one present.
Upon pickup, the Crowbar affords you 150% damage against enemies with more than 90% of health remaining, with each further stack granting you an additional 30% increase in damage. In practice, the Crowbar will be most useful if used with high-damage items and skills, because the bonus tends to go away after just a few hits at most.