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Ensnaring Bolts
Swordmage Attack 13

Bolts of purple lightningt jet from your blade and rip at your foes, pulling them toward you.

Target: Each enemy in blast

Attack: Intelligence vs. Reflex

Hit: 1d10 + Intelligence modifier lightning damage, and you pull the target a number of squares equal to your Constitution modifier.
Aegis of Ensnarement: The target is also slowed until the end of your next turn.

Ensnaring Bolts is an encounter power available to swordmages at the 13th level.[AP:57]