"What does it mean to be a Warlock? Power. Only Warlocks understand true power."
Warlocks were the first to tap the power of the Traveler, wielding its light as they ventured beyond the safety of the Wall. They know each discovery offers new possibilities, and they have devoted themselves to understanding the Traveler, its power, and how to better channel that power. A Warlock mind is an arsenal of deadly secrets, balanced between godhood and madness. On the battlefield, those secrets can shatter reality itself. They search the frontier to find a means to defeat the Darkness once and for all. Warlocks are known for pushing the boundaries of knowledge, even into dangerous territory. At least two warlocks, Toland, the Shattered and Osiris, were exiled for studying the Hive and Vex too closely. There also exists an order of warlocks called the Thanatonauts, who take advantage of Guardians ability to resurrect themselves to receive visions every time they die.
Ikora Rey
As the Warlock Vanguard, Ikora serves as a balancing force between the steadfast yet rigid Zavala and the unorthodox yet reckless Cayde-6, offering the most logical course of action and whatever wisdom she has to spare. It is her duty to gather intelligence on the City's enemies and defeat them before they become a threat. As such, she formed the Hidden, a network of agents that spy on enemy forces. Her leadership, resolve, and bold initiatives makes her well-respected in the Vanguard, amongst her fellow Warlocks, and with the City factions. The only time she questioned herself was during the Red War after losing the Light, but thanks to the Guardian's efforts, she regained her sense of spirit.
"Ikora looks at me with one of those looks that—you know sometimes you talk to Ikora and you just think, wow, you are not even using a fraction of your brain on me, are you? One of those looks." — Cayde-6
"A Warlock's mind is an arsenal of deadly secrets, balanced between godhood and madness."
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"Warrior-scholars of the Light, Warlocks devote themselves to understanding the Traveler and its power."
"On the battlefield, the Warlock can shatter reality itself."