With a quick flourish, you convince an opponent that you aren't really where it thinks you are.

Encounter   ✦     Arcane, Illusion
Minor Action      Ranged 10

Target: One creature

Effect: Make an Arcana check. If the check result beats the target's passive Insight, you gain combat advantage and partial concealment against the target until the end of your next turn.

Published in Dragon Magazine 420.