The formula for this bomb must be acquired before it can be crafted.
Witchers rarely use fire in combat as it conjures up shadows that can be disorienting during a fight. However, when facing hordes of monsters, they often set aside finesse in favor of using weapons of mass destruction. The Dancing Star, a bomb that bursts flames, is one such weapon.
This bomb is especially effective against creatures that attack in swarms and are vulnerable to fire. It can also be used to ignite the cloud of gas produced by the Dragon's Dream bomb.