Kill a Caragath with an Execution.

Kill the Basilisk

Execute a 200-hit combo

Entertain the Persian harem

Finish all beam walks

Defend the Shores of Attica

One has walked in Mordor.

Complete all Hunting Challenges.

Complete all Azkâr Legend Missions.

Collect 100% of the Ithildin.

Capitalize on a Warchief's Fear.

After an uruk kills you to become a Captain, help him become a Warchief, then kill him.

Help a Captain survive a Recruitment Power Struggle, and then kill him and all his new recruits.