https://www.polygon.com/2017/10/6/16434938/destiny-2-iron-banner-rewards-prestige-raid-rewards

Bungie has announced Destiny 2’s first Iron Banner event, and the multiplayer competition has seen some major changes since the first game.

“Your fighting abilities, not your power levels, will decide the outcome,” the official page states, and that’s not the only change. The bounties and ranks of the original events have been replaced by an Iron Banner engram as well.