Wandering Swordmage Utility 12Arcane Tanglestep
A swirl of your blade creates a magic snare and two entangled portals. You step through your portal as the enemy feels the yank of the snare.
Encounter Arcane, Teleportation
Immediate Reaction Personal
Trigger: An enemy you have marked hits an ally with an attack that does not include you
Effect: Instead of using your normal aegis of assault immediate reaction or aegis of warding immediate interrupt, you teleport yourself to any location within a number of squares equal to 5 + your Wisdom modifier, and you teleport the enemy that triggered the power to a square adjacent to you.
Published in Forgotten Realms Player's Guide, page(s) 68.