War Horn

War Horn is a new item in Risk of Rain 2. It increases your attack speed modifier by .7 for 8 seconds any time you activate your equipment.

Synergies

 * Collecting this item in conjunction with a low-cooldown Equipments, Gesture of the Drowned, and multiple Fuel Cells can allow you to keep the bonus indefinitely.
 * Gnarled Woodsprite with only GoTD will allow you to keep the attack speed bonus without any fuel cells.