Cold Fusion (perk)

Overview

Cold Fusion is the intrinsic of Coldheart, an Exotic Arc Trace Rifle. It fires a steady, cold-fusion-powered Arc laser that deals more damage the longer it stays on a target. The ramp itself is the separate trait Longest Winter, which sits on the Coldheart's roll pool.

Sources differ on how the ramp works in PvP, where kills are fast and targets often change before it builds. Community members say the weapon is closer to an electrolaser than a true cold beam. Check current patch notes before relying on the ramp rate.