An enemy trying to pass by you or an ally suddenly lights up in an agony of psionic backlash.

Encounter   ✦     Psionic, Psychic
Immediate Reaction      Close burst 10

Trigger: An enemy leaves a square that is adjacent to you or one of your allies

Target: The triggering enemy

Attack: Intelligence, Wisdom, or Charisma + 6 vs. Fortitude
Level 21: +9.

Hit: 2d12 + Intelligence modifier, Wisdom modifier, or Charisma modifier psychic damage, and you pull the target 3 squares and it is immobilized (save ends).

Published in Dragon Magazine 387, page(s) 18.