Let me chip in with my own version of turn undead (although both versions presented before seem pretty good as well, I feel like tossing in more ideas can only benefit the discussion):
TURN/REBUKE UNDEAD
Turn and rebuke undead abilities work differently than described in the core rulebooks. Changes to the abilities are summarized below:
Turning undead is a supernatural ability that a character can perform as a standard action that does not provoke attacks of opportunity and is considered an attack. To turn, a cleric presents his holy symbol and creates a 60 ft. cone of positive energy that affects only creatures of the undead type. All undead within the cone must succeed at a Fortitude save (DC = 10 + 1/2 cleric’s level + cleric’s Charisma modifier) or be turned. Turned undead flee or cower (which grants a +2 bonus on attack rolls against them) for 10 rounds. Undead that have half as many hit dice as the cleric has levels are destroyed instead. An undead creature adds its Charisma bonus (if any) to the saving throw.
A single turning attempt cannot affect more than twice the cleric’s level HD worth of undead creatures, to a minimum of one undead creature (regardless of its HD). If multiple undead creatures are present within the affected area, weaker undead creatures are always turned first.
If an undead creature has turning resistance, it applies the bonus to its Fortitude save and counts as if it had more hit dice for the purpose of determining whether it is turned or destroyed.
Rebuking undead is similar to turning, but the creatures always cower instead of fleeing, and those that fail their save on a natural 1 and those that have half as many hit dice as the cleric has levels are commanded instead.
An evil cleric can dispel a good cleric’s turning attempt by winning an opposed check (1d20 + cleric’s level + cleric’s Cha modifier), and vice versa.
TURNING OTHER CREATURES
Some domains allow the cleric to make turning attempts that affect other types of creatures (such as lycanthropes, reptiles, or elemental subtype creatures). Those attempts always count against the cleric’s available number of turn undead attempts per day, and have the same DC as turn undead.
For example, a cleric of Selûne with access to the Moon domain may turn evil lycanthropes in addition to being able to turn undead. If that cleric has an average Charisma score (10-11), he may use his turning ability three times per day, divided between turning undead and turning evil lycanthropes as desired.
GLORY DOMAIN
Granted Power: You gain Ability Focus (Turn Undead) as a bonus feat.
SUN DOMAIN
Granted Power: You can make a greater turning attempt once per day. Any affected undead creatures are destroyed if their hit die total is lower than your cleric level.
IMPROVED TURNING
This feat is no longer available. Take Ability Focus (turn undead) instead.
