You zero in on an enemy and commit yourself to its defeat by creating a field to keep it close and hedge out interference.

Daily   ✦     Implement, Psionic, Psychic, Zone
Standard Action      Close burst 2

Target: One creature in the burst

Attack: Dexterity vs. Reflex

Hit: 4d8 + Dexterity modifier damage, and the target grants combat advantage (save ends).

Miss: Half damage.

Effect: The squares adjacent to the burst become a zone that lasts until the target drops to 0 hit points or until you leave the zone. Nothing can teleport into or out of the area enclosed by the zone. The target treats the zone as blocking terrain, and any creature other than you or the target that enters the zone or starts its turn there takes 10 psychic damage. A creature can take this damage only once per turn.

Published in Heroes of the Elemental Chaos, page(s) 80.