Electrify

Zap a mob, player or block. Electrified mobs are frozen in place; the effect is stored on the entity so it sticks until you remove it.

• Right-click — electrify what you're aiming at.
• Shift + right-click — un-electrify it.
• F4 — clear all electrified blocks.

Short range (not the staff's full beam reach). A floating label tags the target and fades on its own.