Try this:
Focused
Prerequisite: 1st-level. Cannot choose this and a multi-class feat.
Benefit: Gain a +2 bonus to 2 of your class skills. You have mastered your abilities to such an extent that you may, as a free action, convert any power you know into another power you know of the same type (encounter attack, utility or daily attack) that is of equal or lower level. This conversion is not permanent, it lasts only for that use of the power.
Talented
Prerequisite: Must have the Focused feat.
Benefit: You may designate any power you use, as a free action, once per day, as having the Reliable keyword. This keyword remains with that power until you take an extended rest or until the power is reliably used.
Special: You may take this feat only once in the Heroic tier, once again in the Paragon tier and one last time in the Epic tier.