Enchant Crossbow Bolts (Emerald) is a spell that allows Emerald bolts to be enchanted, making them Emerald bolts (e) and imbuing them with a special effect called Magical Poison. Magical Poison adds a small chance of poisoning your opponent for 5 damage initially. This provides a means to poison your opponent if you don't have a poisoned weapon. It also provides a method of poisoning from a distance. One cast can imbue 10 bolts.

This spell is available at 27 Magic, giving 37 experience. It requires 1 Nature rune, 1 Cosmic rune, and 3 Air runes to cast.