Discipline Priest revolves around preventing damage by shielding and reducing damage with Pain Suppression, while still having some good direct healing potential.

Talents for Discipline Priest Wotlk

Discipline Priest Wotlk Spec

Glyphs

Major

Glyph of Flash Heal

Glyph of Prayer of Healing

Glyph of Power Word: Shield

Minor

Glyph of Shadow Protection

Glyph of Shadowfiend

Glyph of Shackle Undead