Rechan said:Page 159.
Cloud of Daggers:
Area 1 square within 10 squares.
I've never seen any other spell only effect 1 square. I think this is supposed to be 'Area Burst 1'.
Looks perfectly fine to me. You zap someone with force daggers, and then fill the area they were in with shards of force that make people think twice about moving through the square. If You filled a Burst 1 zone with shards that would be pretty overpowered for an At-Will power.