Iron Sky
Procedurally Generated
Noble adept might be a bit OP (but only for Psis) - I can;t speak from experience with it, but in general the Encounter power is only about as powerful as an at-will (about 1x[W]).
I've played 10-or-so sessions in a Dark Sun campaign with three Noble Adepts in it.
Each of us uses it almost every skill challenge and combat(unless we're rolling awesome and don't need it). It usually means the difference between an encounter or daily missing or hitting (so 1-3[W] and and/or a useful rider).
In PbP where most DMs post the defenses of the monsters, it works even better. If nothing else, I think it's superior to most other theme powers because:
*It's a free action, most others are standards
*It's universally useful - even out of combat while others seem to be situational even in combat