Vesta's spear

Vesta's spear is a 2-handed weapon exclusive to Deadman seasonals, requiring 78 Attack to wield. It is part of Vesta's equipment, a set of Ancient Warriors' Equipment, and is dropped by any NPC found in the wilderness as part of a global wilderness loot table, the chance being relative to the combat level of the NPC.

Special attack
The Vesta's spear special attack, Spear Wall, costs 50% of the wielder's special attack energy. Upon use the wielder becomes immune to melee attacks for 8 game cycles and the spear will damage all targets within 8 tiles surrounding the player. Outside of multicombat zones, only one target is damaged. This special attack can hit a maximum of 16 targets at once.

Trivia

 * Ancient Warriors' equipment were originally added in a 2008, a year after the backup of Old School Runescape.
 * Vesta's spear, along with other Ancient Warriors' equipment was polled a possible drop from revenants, this poll failed.