Nightwing has long been important to DC history, but he's reached a new level in recent years. Nightwing was defined for ages by his relationships with other characters or as a member of teams like the Teen Titans and the Titans, but lately, he's finally gotten to take his proper place in the greater DC Universe. Dick Grayson has always been a leader, but he's never been on the level of the Trinity. That changed when he saved the Multiverse from Deathstroke in Dark Crisis On Infinite Earths, and the Titans were put in charge of defending the Earth.
Source：https://www.cbr.com/nightwing-overtook-the-dark-knight-ages-ago/
