Maul of omens

The maul of omens is the weapon required to defeat Vorago. It must be assembled from the three pieces of the maul – ancient weapon handle, ancient weapon piece (a), and ancient weapon piece (b) – dropped during stages 1, 2 and 4 of the fight against him, and needs to be in a player's inventory to finish him off in stage 5. When it is used during the final seconds of the fight, a cutscene occurs in which the player scales up the front of Vorago and smashes him with the maul twice before impaling it into his eye, causing him to fall off the arena.

The maul cannot be equipped. Instead, the left click option is "Finish Him!". As a result, there are no level requirements to use it. There is no benefit to being the player using it at the end of the fight, however doing so at least once is a requirement for the trimmed Completionist cape, and finishing Vorago in all 5 rotations is a requirement for Hard mode.

Trivia

 * The left click option "Finish him!" is a reference to the fighting game 'Mortal Kombat', where the commentator would speak the phrase at the end of a battle.
 * The maul's equipped graphics exist as a dummy in the game's system for the animaton; it may be wielded by Jagex Moderators, but not by players.