The High Templar Hero was a powerful high templar who assisted in the war between the settlers of Shakuras and Ulrezaj.
Ulrezaj had stolen a sacred khaydarin crystal from Shakuras, and while tracking it, the protoss discovered that Ulrezaj had created five twisted khaydarin crystals on Char. He was using them to control zerg minions.
Zeratul needed a dark archon to destroy the warped crystals, as only its psychic fury was capable of it. This Dark Archon Hero was accompanied by the High Templar Hero as well as several other heroes.
The high templar selects a unit, creating two duplicates of it. Hallucinations appear with a blue tint to the creating and controlling player, while all other players will see them as duplicates of the original. Hallucinations do not inflict damage when they "attack", may not cast spells, or produce units (important for hallucinated carriers and reavers), and take double damage from all attacks. Hallucinations last for a limited time and automatically disappear when hit by spells (eg. EMP shockwave, Mind Control).
The high templar can create a storm of raw psychic energy. This is achieved by one closing their mind to the outside world, sending out psychic "ripples" that are disruptive to other lifeforms.
Inflicts total 112 damage to all units within a target area over 3 seconds (14 damage in 8-frames intervals, starting from the 16th frame after cast, resulting in 8 damage instances over 64 frames).
The storm does not harm structures or units within bunkers. Psionic storm ignores armor and armor types.
It does not prevent units from moving into or out of the affected area. Only one storm may affect an area at a time; overlapping storms does not increase damage output.