Using items is always full of "surprises". Clicking the drone ten times triggers a special effect; I accidentally selected the red explosion, and as a result, the Hextech Stone was immediately surrounded and attacked by zombies as soon as it spawned. By the time I accumulated 150 attacks, my defenses were almost breached. Holding down the keypad for five seconds to get a buff, the "Damage +20%" message popped up, only to be ambushed by a self-destructing zombie from behind, wiping out both the buff and my health.