Yoink! is Riki's Talent Art in Xenoblade Chronicles. It is a physical attack which inflicts damage and steals an item, HP, Strength, Ether, or Agility from the targeted enemy. AP and EXP will be added to this list upon unlocking the "AP for All!" and "EXP for All!" skills in Riki's Flexibility skill tree.
Yoink! can only steal one thing at a time, the thing stolen is chosen at random.
Yoink! will fail if the target's Level exceeds Riki's by 10 or more.
Nothing will be stolen if the attack misses or is blocked.
Items stolen will be only received when the party either wins or flees from the battle.
If the party is defeated, the item is lost.
Yoink! can steal items that are considered as gold treasure chests drops from enemies that do not drop gold treasure chests.
The debuffs inflicted to the enemy will last until the battle ends. Riki's buffs will disappear when he is KO'ed or the battle ends.
The items which Riki can steal from an enemy are based on the enemy's treasure chest drop tables. Some enemies do not drop chests, or only drop certain types of chests, in this case, the enemies have a full set of wood, silver, and gold chest tables from which Riki can steal. Riki's comment will determine the grade of the item obtained.
Wood: "Riki find item!"
Silver: "Ooh! Riki find rare item!"/"Riki take rare item!"
Gold: "Oooooh!! Rare thing!!"
Stealing EXP or AP will give 50% of the EXP and AP normally awarded for killing the enemy. This will also vary depending on the level gap between the enemy and Riki.
Stealing HP: 50% of Riki's total HP. The enemy will lose the same amount of HP.
Stealing strength, ether, and agility: Riki's stat +10%, enemy's stat -10%; maximum total is 50%.
An enemy can lose at a maximum of 30% for each of those stats.