Stealth

These Units are invisible until revealed by Detectors or spells.

Overview
A Stealthed unit is rendered invisible to enemies, unless an enemy Detector is nearby. These include Cloaked and Burrowed units. Some Cloaked or Burrowed units may attack without decloaking; Terran cloaked units require energy to maintain their camouflage, and the Cloak will be disabled when it is depleted.

The ability to approach unseen, attack while invisible, and fade away makes cloaked units ideal for ambushes, raids on Worker lines, and scouting. Detectors are the normal method of revealing cloaked units.

When invisible, Cloaked and moving Burrowed units may be tracked by their slight "rippling" distortions. Invisible units retain their collision radius; their position may be given away if visible units must move around an invisible one. Detectors are still needed to target invisible units even if they are found these ways.

Detectors are not the only way to deal with cloaked units. Some abilities affect or reveal cloaked units. Cloaked units are affected by splash damage; it is possible to attack a friendly unit with a Splash attack to damage surrounding invisible cloaked units. Friendly Stealthed units have a blue tint to them, or display underground Burrow animations.