You use the enchantments on your ally's armor to moor him or her to your current plane, making him or her a part of the fabric of reality.

Encounter   ✦     Arcane
Minor Action      Ranged 10

Target: You or one ally in range

Effect: The target cannot be pushed, pulled, slid, knocked prone, or teleported against its will until the end of your next turn.

Published in Dragon Magazine 381, page(s) 59.