Battle of Amon Lanc

Prelude
After the Battle of Mount Gram, Legolas had been wary to lose more wood-elven lives in the war. Negotiating with Sauron, Legolas convinced the Dark Lord to surrender Amon Lanc to the Woodland Realm. Yet Sauron himself did not leave the fortress of Dol Guldur, prompting Legolas, Gimli and Nylandrar to attack his retreating forces.

Battle
While Legolas and Gimli dealt with the many orcs, trolls and spiders along the way, Nylandrar fought with Sauron, using his skin changing skills to his advantage, confusing the over-confident Sauron. Sauron left promptly in anger, arriving in Mordor intent on ending the war once and for all.

Aftermath
Sauron's defeat at Amon Lanc enraged him, and he decided to challenge Edrahil to a duel, seeking to end the war once and for all. Nylandrar was praised by the Mallorn Council for his deeds, and Legolas renamed Mirkwood into Greenwood.