Introduced in the very first Xenoblade Chronicles game, Unique Monsters are a staple of the series, represented as powerful monsters for players to try and take down for added challenge.
Smothering Andante is a Unique Monster that appears in Xenoblade Chronicles 3: Future Connected. It can be found in Gaur Viaduct in Aurora Shelf and defeating it counts towards completing your Enemypaedia.
Smothering Andante (Level 11) | Aurora Shelf
For assistance with finding all Unique Monsters in Aurora Shelf, why not check out our useful guide below:
[Guide] Aurora Shelf Unique Monsters | Xenoblade Chronicles 3: Future Redeemed