Unique monster (XC3)

Unique monsters are enemies in Xenoblade Chronicles 3 that are typically larger and stronger than most other enemies, acting as optional non-story minibosses. They also have individual names and potentially arts that no other enemy does.

Unique monsters have golden wings around their nametag.

Mechanics
Unique Monsters spawn in fixed locations on the map. Most will always appear, but some require specific conditions before they spawn. Unique Monsters are typically the strongest monster encountered in the area, sometimes being dozens of levels higher than the monsters surrounding them.

While battling a Unique Monster, a timer is displayed beneath its health bar, counting how long the battle has been.

Upon defeat, the monster will spawn a gravestone near its spawn point. This gravestone can be used as a skip travel point. In addition, it can be interacted with; interacting with a grave will display both the fastest time and highest difficulty the monster has been defeated in. This menu also allows the player to respawn the Unique Monster, allowing them to challenge it again for better times or to gather more drops.

When a Unique Monster is defeated and at least one party member has the Soul Hack, any party members with the Soulhacker will learn a new Art.