Zamorak bow

The Zamorak bow was released on 4 August 2010 as part of the Elite Treasure Trails update. Along with the the Saradomin bow and Guthix bow, it requires 55 range to use.

Wielding it gives a Ranged bonus of +80, almost reaching the Rune crossbow's bonus. The God bows also give a small Prayer bonus of +4; this is unique as no other bow offers a positive Prayer bonus (Zanik's crossbow has a -5 Prayer bonus).

The only way to obtain this item is to trade with other players, or get it as a reward from Elite (Level 4) Treasure Trails.

This bow has a special attack, called "Twin Shot" which doubles the amount of damage for one shot (1 arrow) similar to the Dark bow's special attack (The Dark bow triples the damage per arrow (150% per arrow x2)). It drains 55% of the special attack bar.

Trivia

 * There currently is a glitch in which the G.E shows that the bow can fire arrows up to iron, while the knowledge base is showing it can fire up to dragon. It has now been confirmed in the FAQ thread in the Recent Events forum that the bow fires up to rune arrows.
 * Theoretically, with its special attack, wearing a castlewar bracelet, one could hit around a 690 (seeing +60 ranged strength maxes around 320s, and with potential elemental bonus damage added to the shot (+50 or so).
 * This weapon shares a resemblance to the Dark Bow.