"Tell me this, Guardian," Lord Shaxx bellows, his horned helmet towering over you. "Did the Cosmodrome sufficiently hone you? Are you prepared to face all the Darkness can muster?"
"You're a fool if you think so. All blades dull with time; keeping yours sharp is a matter of diligence and discipline. For that end, I created the Crucible."
He gestures at an array of screens streaming video footage of Guardians battling each other.
"Pit yourself against your fellow Lightbearers, and we'll see if you have your edge yet."
Shaxx invites you to participate in Crucible matches against other Guardians and to complete the Crucible bounties he offers.