Sneaky

Sneaky is one of Riki's offensive arts in Xenoblade Chronicles. The art's damage is tripled if used from the enemy's back.

Intermediate
The intermediate books are only found in shops for 7,900 G
 * Frontier Village
 * Frontier Village Armour Shop

Advanced
Advanced art books are only available from enemy drops. For any enemies listed with a 0% drop rate, the item can only be obtained using Yoink!, Riki's Talent art.