Polypore staff

The polypore staff is a magical staff requiring 80 Attack and 80 Magic to wield. It is constructed by growing 3,000 polypore spores on a polypore stick to imbue it with power. 15,000 fire runes are also required. Doing so requires 80 Farming.

With a polypore stick, 3,000 polypore spores, and 15,000 fire runes you make the staff. This gives the staff 3,000 charges. The staff can hit up to 781 damage on a Slayer task in Kuradal's dungeon, making it the most high-hitting magic-based weapon in the game (outside of special attacks). It also has the highest prayer bonus of any staff in the game.