Zoe kicks a ball that detonates on the first enemy hit, dealing 60 / 100 / 140 / 180 / 220 (+40% of ability power) magic damage and making the target Drowsy, slowing them by 10 / 15 / 20 / 25 / 30%. After a brief delay, the Drowsy target falls asleep for 2.2 seconds.

Sleeping targets take double damage from the next attack or ability to hit them, up to a cap of Sleepy Trouble Bubble's damage, but are awoken early upon taking damage.

The ball's range is doubled when it passes through terrain. If the ball does not hit an enemy, it lingers on the ground as a trap for 4 seconds, which primes after a 0.8s delay.