To step things up, you can be a proper cleric of Lolth and pick a fitting domain, like Trickery or War ... or the deep gnome, will be a fun combo between class and species for roleplaying reasons ...

Conducting a series of increasingly sick rituals - involving the ashes of a gnome and silkworms fed fat on the corpse of a dwarven cleric - the goblin shaman Kirruk Redrats created this deadly bow.