Holy Word: Chastise

Holy Word: Chastise is an offensive priest Holy Word obtained by specialising in the Holy talent tree and so is unique to Holy priests. It is an instant-cast damage spell that disorients its target. With the Revelations talent, it can be transformed into Holy Word: Serenity or Holy Word: Sanctuary, depending on the active Chakra state.

Tips and tactics
The disorientation effect of Holy Word: Chastise can be invaluable for priests in PvP, and the spell's damage, though not considerable, can be useful as an extra nuke. However it should be noted that as of Patch 4.0.6 the disorientation effect will break immediately upon any damage taken by the target, meaning that this effect is best used for crowd control or to allow time for healing, escape or the use of an ability with a long cast time. However even in hectic battleground encounters, it can still be used to interrupt a caster at a critical moment.

Priest using this ability often may wish to spend points in the Holy talent Tome of Light, potentially reducing the cooldown for this ability from 30 to 21 seconds.

Damage Table
It should be noted that in cataclysm ranks have been removed on all spells and as a result spell damage will scale according to your current level in addition to all other ordinary factors such as spell power.

Revelations
Found on tier 5 of the holy tree is the talent known as Revelations. This talent transforms your Holy Word: Chastise spell into a new spell based on your current Chakra state. It should be noted that with Revelations talented, Holy Word: Chastise will not be available while in Chakra: Serenity or Chakra: Sanctuary. Priests concerned with PvP may therefore wish to consider whether or not to sacrifice the stun and instant damage capability of Holy Word: Chastise in exchange for increased healing abilities.

Improvements

 * Tome of Light reduces the cooldown of your Holy Word spells by 15/30%.
 * State of Mind reduces the cooldown of your Chakra spell by 3/6 sec.