Unique monster (XC2)

Unique monsters are enemies in Xenoblade Chronicles 2 and Xenoblade Chronicles 2: Torna ~ The Golden Country that are typically larger and stronger than most other enemies, acting as optional non-story minibosses on the field. They also have individual names and potentially arts that no other enemy does, and provide more rewards when defeated. Uniques on the field can be identified by a symbol behind their target icon. Unlike normal enemies, they will aggro the party no matter their level difference or if Enemy Aggression was disabled.

In Xenoblade Chronicles 2
There are 85 Uniques in Xenoblade Chronicles 2, some of which are es and one that is missable. Some Uniques only spawn in specific weather conditions or time of day while others spawn among a crowd of enemies. While some can be static, sitting at a pre-determined spot until engaged, others can have a pre-determined path they follow.

Upon battle being engaged, a timer will appear on the left side of the screen, displaying the time spent in battle with the Unique. Additionally, when in battle with a Unique, Those Who Stand Against Our Path will play in Gormott, Uraya, the while You Will Recall Our Names will play in all other areas. Relentless Arduran is the only exception with Driver Vs playing instead.

When a Unique is defeated, the timer will stop, Hunting Succeeded will play and a tombstone will appear nearby. The tombstone can then be interacted with to resurrect the Unique for a rematch or see the lowest time it took to defeat it. While Uniques do not drop particularly unique rewards, aside from a few special cases, they can be a great way to farm them due to their high pool for Driver Combos and the ease of resurrecting them on the spot.

A list of already defeated unique monsters can be seen by talking to the Battle observer in Garfont Village. The list is divided between difficulty settings and can be sorted by Titans.

In Torna ~ The Golden Country
Unique monsters reappear in Torna ~ The Golden Country. There are 20 Uniques in the game, 4 of which are Golden Monsters, the game's superboss counterpart. They also behave the same way as in Xenoblade Chronicles 2. However, in Torna ~ The Golden Country, tombstones of already defeated unique monsters are displayed on the map with an icon that looks like said tombstone. Interacting with tombstones also no longer displays the lowest time it took to defeat the unique monster, only asking whether or not to fight the Unique again. When fighting a Unique in the Kingdom of Torna, Those Who Stand Against Our Path will play while You Will Recall Our Names will play in.

Defeating all 16 regular unique monsters in both Torna and Gormott is required for Martha to join the. Much like Martha, the Nopon Halfsage will join the Community if all 4 Golden Monsters were defeated.

Unlike in the main game, there are no easy way to see a list of already defeated unique monsters, nor is there any way to see the lowest time it took to defeat a specific one as a result.