A crystalline wasp with gossamer wings appears next to your foe and stings it, then buzzes about, waiting for another opening to attack.

Encounter   ✦     Arcane, Conjuration, Evocation, Implement
Standard Action      Ranged 10

Target: One creature

Attack: Intelligence vs. Fortitude

Hit: 1d10 + Intelligence modifier damage.

Effect: You conjure an astral wasp that appears in 1 square within the target's space. It lasts until the end of your next turn.
If the target moves out of the astral wasp's square, it takes damage equal to your Constitution modifier. If the target ends its turn more than 2 squares away from the astral wasp, it takes damage equal to your Constitution modifier.

Update (10/18/2011)
Updated in Wizard Schools article.

Published in Arcane Power, page(s) 101.