From wow.incgamers.com

Statistics

Talent Improvements

Discipline Tree

Talent: Inner Focus
Effect: When activated, reduces the Mana cost of your next spell by 100% and increases its critical effect chance by 25% if it is capable of a critical effect.
Statistics: N/A

Talent: Mental Agility
Effect: Reduces the mana cost of your instant cast spells by a %.
Statistics: Rank 1 = -2%, Rank 2 = -4%, Rank 3 = -6%, Rank 4 = -8%, Rank 5 = -10%.

Talent: Silent Resolve
Effect: Reduces the threat generated by your Holy and Discipline spells by a % and reduces the chance your spells will be dispelled by a %.
Statistics: Rank 1 = -4% threat & -4% dispell. Rank 2 = 8% threat& -8% dispell. Rank 3 = 12% threat & -12% dispell.

Talent: Force of Will
Effect: Increases your spell damage by a % and the critical strike chance of your offensive spells by a %.
Statistics: Rank 1 = +1% spell damage and critical strike chance, Rank 2 = +2% spell damage and critical strike chance, Rank 3 = +3% spell damage and critical strike chance, Rank 4 = +4% spell damage and critical strike chance, Rank 5 = +5% spell damage and critical strike chance.

Threat Level

This skill causes a moderate amount of Threat.

Uses in PvP

Please feel free to add a bullet list of uses within PvP or editorial if you have more to say. What use is it against other builds, what skills can it be used to counteract or prevent. What skills does it work well in combination with.

Uses in PvE

Please feel free to add a bullet list of uses within PvE or editorial if you have more to say. Which creatures/bosses in particular is it useful against. What skills does it work well in combination with.