Blessed Bolts are a type of crossbow ammunition in Baldur's Gate II and its Enhanced Edition. Despite their description, the bolts are not actually imbued with the Bless spell, and thus don't give the user any bonuses to morale, saves, or attack rolls. They do, however, kill a Rakshasa instantly on a successful hit, making these bolts quite useful against said creatures. Additionally, unlike regular bolts, they have a +1 modifier to damage and THAC0.
These bolts were cut from the game and are not available via normal means.
|“||This is a crossbow bolt that has been permanently enchanted with the spell Bless. The enchantment will remain until it is fired out of a crossbow, at which time the magic will fade. It has been fabled that if a rakshasa is struck with this bolt, it will die instantly.||”|