Unholy symbol

An unholy symbol is a silver symbol blessed to imbue it with the unholy power of Zamorak.

Players can make unholy symbols through the Crafting skill. First, a player must use a silver bar with a furnace while they have an unholy mould in their inventory. This will give the player an "unstrung emblem" and they will receive 50 Crafting experience. Next, the player must string the symbol with a ball of wool, giving the player 4 Crafting experience and making the "unstrung unholy symbol" into an "unpowered symbol." Finally, the symbol must be blessed by the Spirit of Scorpius at the Scorpius Shrine, north of the Observatory, or by using an Unholy book or Book of balance with it. To bless the symbol using one of the books, a player must have a Prayer level of 50 or higher, and blessing the symbol makes the player expend floor(current prayer points / 10)+2 Prayer points. Once blessed, the "unpowered symbol" becomes simply an "unholy symbol" and provides the bonuses below.

Trivia
If players wear an unholy symbol while in the waiting room of Saradomin in Castle Wars, they will be transformed into a rabbit or when entering the Guthix portal they will turn into a sheep until the start of the next game.