UNIT_SPELLCAST_CHANNEL_UPDATE

Fires when a unit's channeled spell is interrupted or delayed.


Signature:

Arguments:

• unitID - The unit that's casting. (string)
  
• spell - The name of the spell that's being casted. (string)
  
• rank - The rank of the spell that's being casted. (string)
  
• lineID - Spell lineID counter. This number is always 0 for channels. (number)
  
• spellID - The id of the spell that's being casted. (number, spellID)