Shaco creates a Jack in the Box at the target location, which becomes stealthed after 2 seconds. When an enemy comes near (300 range), the box will trigger, fearing nearby enemy champions for 0.5 / 0.75 / 1 / 1.25 / 1.5 seconds and reducing their movement speed to 100, while fearing all other enemies for 2 seconds and reducing their movement speed to 60.

The box will also start firing at nearby enemies, dealing 15 / 20 / 25 / 30 / 35 (+10% of ability power) magic damage to them with each attack (reduced by 50% against structures). If the box attacks only one unit, this damage is increased to 35 / 50 / 65 / 80 / 95 (+20% of ability power) per attack.

A Jack in the Box lasts for up to 40 (+5% of ability power) seconds while stealthed, or up to 5 seconds once triggered.