Pathfinder 2e Item: Cluster Amulet

This amulet affixed with an enchanted crystal snapped off of a spirit cluster contain elemental magic that makes the breath of a dragon stronger. If you have a breath weapon, the damage die size increases to a d6, it recharges in 1d4 rounds rather than one minute, and its size increases. If your breath weapon is a line, its total length increases by 10 feet; if it is a cone, its length increases by 5 feet; if it is a burst, its size increases by 5 feet.