Heya bobby I found an instance of the CC not using other spells. I was watching it and a DK countered my heal but I had other spells avaliable and it jsut stood there. here is the log.
*Lava Burst 
>>> MULTIPLE TARGETS:  0 melee,  3 ranged
*Purge
PVP: priest used Power Word: Shield, purging
*Flame Shock 
>>> MULTIPLE TARGETS:  0 melee,  3 ranged
*Elemental Mastery
*Chain Lightning 
>>> MULTIPLE TARGETS:  0 melee,  3 ranged
*Lightning Bolt
>>> MULTIPLE TARGETS:  1 melee,  2 ranged
*Fire Elemental Totem 
>>> MULTIPLE TARGETS:  1 melee,  2 ranged
*Chain Lightning
>>> MULTIPLE TARGETS:  2 melee,  2 ranged
*Purge 
PVP: priest used Power Word: Shield, purging
^Heal Target: -me-[80] at 33.0% dist: 0.0 in-los: True
Casting of heal prevented: Health=33% Mana=82%
^Heal Target: -me-[80] at 30.4% dist: 0.0 in-los: True
*Healing Surge
^Heal Target: -me-[80] at 38.2% dist: 0.0 in-los: True
*Healing Surge 
^Heal Target: -me-[80] at 35.4% dist: 0.0 in-los: True
*Healing Surge
^Heal Target: -me-[80] at 3.8% dist: 0.0 in-los: True
*Healing Surge 
I died.
Skipping use of 'Reincarnation'
*Lightning Shield
>>> NEW TARGET:  DeathKnight-DeathKnight.1167[80] at 33.5 yds
BGCHK:  calling Combat() myself from NeedRest for FindBestTarget()
>>> ADD: DeathKnight.1167[80] at 16.3 yds
*Flame Shock 
*Lava Burst
*Chain Lightning 
^Heal Target: -me-[80] at 37.6% dist: 0.0 in-los: True
*Healing Surge
^Heal Target: -me-[80] at 19.9% dist: 0.0 in-los: True
*Healing Surge 
*Chain Lightning
*Lightning Shield 
You are silenced and unable to cast
^Heal Target: -me-[80] at 15.9% dist: 0.0 in-los: True
*Healing Surge
^Heal Target: -me-[80] at 29.6% dist: 0.0 in-los: True
*Healing Surge 
^Heal Target: -me-[80] at 31.8% dist: 0.0 in-los: True
*Healing Surge
*Flame Shock 
^Heal Target: -me-[80] at 46.7% dist: 0.0 in-los: True
*Healing Surge
^Heal Target: -me-[80] at 49.0% dist: 0.0 in-los: True
*Healing Surge 
^Heal Target: -me-[80] at 40.1% dist: 0.0 in-los: True
*Healing Surge
*Gift of the Naaru 
Gift of the Naaru: it's good to be Draenei!
^Heal Target: -me-[80] at 41.2% dist: 0.0 in-los: True
*Healing Surge
^Heal Target: -me-[80] at 49.0% dist: 0.0 in-los: True
*Healing Surge 
*Lava Burst
*Water Shield 
^Heal Target: -me-[80] at 36.0% dist: 0.0 in-los: True
Casting of heal prevented: Health=36% Mana=54%
^Heal Target: -me-[80] at 32.7% dist: 0.0 in-los: True
Casting of heal prevented: Health=33% Mana=54%
^Heal Target: -me-[80] at 32.7% dist: 0.0 in-los: True
Casting of heal prevented: Health=33% Mana=56%
^Heal Target: -me-[80] at 32.7% dist: 0.0 in-los: True
*Healing Surge
^Heal Target: -me-[80] at 49.9% dist: 0.0 in-los: True
*Healing Surge 
^Heal Target: -me-[80] at 45.6% dist: 0.0 in-los: True
Casting of heal prevented: Health=46% Mana=54%
^Heal Target: -me-[80] at 45.6% dist: 0.0 in-los: True
Casting of heal prevented: Health=49% Mana=54%
^Heal Target: -me-[80] at 48.7% dist: 0.0 in-los: True
Casting of heal prevented: Health=49% Mana=54%
^Heal Target: -me-[80] at 48.7% dist: 0.0 in-los: True
Casting of heal prevented: Health=49% Mana=54%
^Heal Target: -me-[80] at 47.7% dist: 0.0 in-los: True
Casting of heal prevented: Health=48% Mana=56%
^Heal Target: -me-[80] at 47.7% dist: 0.0 in-los: True
Casting of heal prevented: Health=48% Mana=56%
^Heal Target: -me-[80] at 47.7% dist: 0.0 in-los: True
Casting of heal prevented: Health=48% Mana=56%
^Heal Target: -me-[80] at 44.2% dist: 0.0 in-los: True
Casting of heal prevented: Health=44% Mana=56%
^Heal Target: -me-[80] at 44.2% dist: 0.0 in-los: True
Casting of heal prevented: Health=44% Mana=56%
^Heal Target: -me-[80] at 44.2% dist: 0.0 in-los: True
Casting of heal prevented: Health=44% Mana=56%
^Heal Target: -me-[80] at 44.2% dist: 0.0 in-los: True
Casting of heal prevented: Health=44% Mana=56%
^Heal Target: -me-[80] at 44.2% dist: 0.0 in-los: True
Casting of heal prevented: Health=44% Mana=56%
^Heal Target: -me-[80] at 44.2% dist: 0.0 in-los: True
Casting of heal prevented: Health=44% Mana=56%
^Heal Target: -me-[80] at 21.2% dist: 0.0 in-los: True
Casting of heal prevented: Health=21% Mana=57%
^Heal Target: -me-[80] at 21.2% dist: 0.0 in-los: True
Casting of heal prevented: Health=21% Mana=57%
^Heal Target: -me-[80] at 20.2% dist: 0.0 in-los: True
Casting of heal prevented: Health=20% Mana=57%
^Heal Target: -me-[80] at 20.2% dist: 0.0 in-los: True
*Healing Surge
I died.