The Investigation is the second mission in The Witch Queen campaign for Destiny 2. It serves as an introduction to the Throne World zone, the second type of Lucent Lightbearer you'll fight throughout the campaign, and it introduces the Deepsight mechanic.
Related: Destiny 2 The Witch Queen: The Arrival Legendary Mission Walkthrough
While this mission doesn't seem to have a Master variant as of writing, the Legendary version of this mission can be difficult if you're attempting this solo or flawlessly. This guide will go over the best subclass and weapons to bring, and we'll break down the best way to complete each encounter. And if you haven't started the Legendary campaign yet, give our walkthrough of The Arrival mission a look.
Legendary has the same modifiers as The Arrival, pitting you against somewhat tanky enemies that have stronger shields, more health, and deal a little more damage than normal. Chaff and Fire Pit are especially dangerous modifiers in this mission, so watch your back.
Hunters should stick to Revenant for this mission. Most of the encounters involve swarms of enemies that spawn in predictable locations. A single Duskfield or a few Withering Blades can make a huge difference, and Silence and Squall is fantastic for the last encounter.
Titans should consider using Bottom Tree Sunbreaker. This spec gives you access to Sunspots and the powerful Sun Warrior buff. Sunspots can help lockdown certain spawn locations, and Sun Warrior lets you spam abilities and have a constant 20% damage buff.
Warlocks can use either Voidwalker or Shadebinder for this mission. Voidwalker can carve through enemies with ease by utilizing Devour and Child of the Old Gods. Shadebinders can use Bleak Watcher turrets to stunlock
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