Wicked Sister

Overview

Wicked Sister is a Strand Grenade Launcher in the Power slot, built on the Adaptive Frame. Its flavor text is "The bad influence in the family."

The curated roll has the Countermass barrel, High-Velocity Rounds, Impulse Amplifier and One for All, plus the origin trait Vanguard's Vindication or Nadir Focus depending on the version. Random rolls can include Volatile Launch, Confined Launch and Hard Launch barrels, Spike or Proximity Grenades, and traits such as Clown Cartridge, Field Prep, Auto-Loading Holster, Chain Reaction and Full Court.

Acquisition

Complete strikes and earn rank-up packages from Commander Zavala, or take it as a possible drop from Vanguard activities. The source page does not mention a crafting pattern.