Force Shard does your charisma mod damage to anyone in its area. but here is an interesting line from the power in the Psionic Power book:
An enemy can take this damage only once per turn.
Is this a misprint? It is also on the D&D Insider's Character Builder. This means that in a fight of, say, 5 party members and 5 enemies there would be 10 turns (each entity gets a turn on a round). So if a creature ends its turn next to the Shard it would take my Charisma mod times 10 before being able to move on its next turn. Since my CHA Mod is 3, that would be 30dmg over the course of the round. This seems kinda high for an at-will power.
So is this supposed to be every turn or every round?