History of Cadmus Ridge Lancecap

Cadmus Ridge Lancecap is an Exotic Titan helmet built around Stasis and the Diamond Lance Aspect.

Overview

Intrinsic perk Lancer's Vigil: while a Stasis Super is equipped, rapid Stasis weapon damage or damage from behind your Rally Barricade creates a Diamond Lance near you. Thrown Diamond Lances create Stasis crystals on impact (more against bosses and vehicles), and deal more damage based on your Frost Armor stacks.

Acquisition

• Complete the Destiny 2: Lightfall campaign on Legendary difficulty and choose it as a reward from Nimbus.
• Solo Legend and Master Lost Sectors on days when helmets are the listed Exotic (requires Lightfall).
• Exotic Engrams and focusing once unlocked in Collections.

Introduced in Season 20 with Lightfall (D2 Wiki). Note: How To Game's page did not load for me, so only its search summary of the perk was used.