The Holy branch boosts the characters healing ability, shadow is the damage per second branch, and the discipline branch focuses on a mix of both as well as improve the priest's buffing spells.As a contrary to the holy tree, which focuses on the heals, priest discipline tree has its emphasis on survival and damage reduction. Most priests that spend their points in the Discipline tree are doing so to be PvP healers.Unbreakable Will: Max 5 points, up to 15% chance to resist stun, fear and silence effects Mainly a PvP talent although it has its uses in some PvE content, extremely useful in PvP though Recommended for all PvP players.Max 5 points, Increases the damage and healing done by your instant spells by 5%.Silent Resolve: Max 5 points, reduces threat generated by holy and disciple spells by up to 20% and reduces the chance your spells will be dispelled by up to 30%.Excellent talent for healers to reduce the chance of drawing healing aggro.Of some value in PvP so that spells can not be removed as easily. Max 3 points, increases the armour provided by inner fire by 15% and increases the total number of charges by up to 12.Inner Fire is used mainly when leveling or when PvPing to prevent damage. The 15% extra armour is not a significant boost.The 12 additional charges allow wow gold players to cast it less often thereby saving mana.Improved Power Word: Fortitude: Max 2 points, adds up to 30% health to your fortitude abilities.