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Hypnotic Swordplay
Swordmage Attack 13

With a mesmerizing twirl of your weapon, you make your opponent's mind reel and rob the creature of it's ability to react.

Melee 1

Target: One creature

Attack: Intelligence vs. Will

Hit: Intelligence modifier psychic damage, and the target is stunned until the end of your next turn.
Aegis of Shielding: The attack deals extra damage equal to your Constitution modifier.

Hypnotic Swordplay is an encounter power available to swordmages at the 13th level.[AP:58]