Abyssal coif

The Abyssal coif is an abyssal item and the helm counterpart of the Ranged-type abyssal armor, which requires a defence and ranged level of 75 to wield, and can only be found as a drop from the abyssal dragon. The coif is degradable and fully degrades after 10 hours of combat, after which players can repair it by either using an armor stand in a POH or by paying bob at Bob's Brilliant Axes. The second option is always more expensive than the first and with a higher smithing level, the first option becomes cheaper. At 99 smithing players only need to pay 200,000 coins to repair the helm, whereas Bob will charge 400,000 coins.

The helm is relatively expensive, but its stats are very high and can rival even the pernix cowl. Another reason for the high price is that the abyssal dragon is very difficult to defeat, and even after defeating it, there's a low chance of receiving an abyssal item drop. Also, fighting the dragon requires a slayer level of 80+.