Channel Divinity

Clerics (level 1) and Paladins (level 4) receive the ability to Channel Divinity a certain number of times per day. The class feat is called Turn Undead, which is also the ability's most basic application. Various enhancements provide additional options for Channel Divinity uses.

Charges
The base number of Channel Divinity charges per rest is (3 + the character's Charisma modifier), potentially increased by various enhancements and effects. Multiclass Cleric and Paladin enhancements stack, but the base number of charges does not stack.

Sources of extra charges
Item enhancements do not stack with each other.
 * items grant +2 charges.
 * items grant +1 charge.
 * items grant +1 charge.
 * The enhancement Extra Turning (Radiant Servant/Knight of the Chalice) grants +1 charge per rank.
 * The epic destiny enhancement Endless Turning grants +1 charge per rank.
 * The feat Extra Turning grants +4 charges.
 * The Endless Turning enhancement (Radiant Servant/Divine Crusader) returns one charge per 120 seconds, with additional ranks reducing the recharge time.

Channel Divinity options
All Clerics and Paladins (level 4) gain the ability to Turn Undead, halting undead, or at higher levels destroying them. Other uses are granted by various enhancements.

Cleric

 * Radiant Servant
 * Positive Energy Burst heals targets around you, and removes negative levels and stat damage.
 * Divine Cleansing removes certain conditions from the target.
 * Divine Healing restores health over time.
 * Purge Dark Magic removes hostile magic effects from the target.
 * Martyrdom, when you are killed, expends 4 charges and heals nearby allies for a large amount.
 * Positive Energy Aura creates a healing over time zone around you.
 * Reactive Heal applies a buff which, when the target drops below 50% hp, consumes itself and heals the target. It also grants immunity to its own effect for 3 minutes.
 * Divine Disciple
 * Divine Vitality restores spell points to the target. (This enhancement was removed from Divine Disciple in Update 56, and can now only be found on certain mid-level Cleric Hirelings.)

Paladin

 * Sacred Defender
 * Divine Righteousness grants temporary hit points equal to your charisma modifier, and grants a +100% sacred bonus to threat generation.
 * Glorious Stand grants, absorption of Negative and Elemental (Acid, Cold, Electric and Fire) Damage, double incoming healing, and immunity to weapon effects.
 * Eternal Defender, whenever you are incapacitated but not killed, expends 2 charges and heals you for 250 positive energy.
 * Knight of the Chalice
 * Divine Light deals a medium amount of light damage to nearby undead.
 * Divine Might, which grants an insight bonus to strength equal to your charisma modifier for a short time.
 * Rally removes fear, grants a bonus to saves versus fear, and grants a small bonus to attack or damage.
 * Holy Retribution deals massive damage, and evil creatures may be destroyed or take 100 holy damage and -6 to all ability scores.

Epic Destiny

 * Divine Crusader
 * Confront Any Foe inflicts extra light damage on a successful hit.

Domain effects
Various Cleric domains produce additional effects when Turn Undead is used.