Bright Lord Ending : The True Lord of the Ring
This is the last story mission in the Bright Lord DLC and the last achievement to get - Betrayed.

The Dark Lord's forces are in disarray. With all of his Warchiefs under your control, Sauron has come to challenge you in open combat.
Strategy: fully charge the Ring before attacking Sauron. With fully upgraded duration of the Ring power - you can deplete his HP in one continuous attack.

Bright Lord Betrayed trophy.
All Bright Lord DLC trophies:
Betrayed: The One Ring has returned to it's Maker.
The Scouring of Mordor: Challenge the Dark Lord in Mordor.
Burning Shadow: Shadow Brand 20 Uruks.
Dominion: Wraith Flash Dominate 50 Uruks.
Battle Forged: Maximize the power of the Ring by completing all of the One Ring missions.
From Shadow to Shadow: Stealth Brand a Captain.
The Silver Fist: Brand 20 Uruks in 60 seconds.
Eregion Reforged: Build all the Forge Towers in Udun.
Have a nice game!

The Bright Lord DLC trophies 100% complete.
Middle Earth Shadow of Mordor Bright Lord DLC PS4 walkthrough.
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