Call of Defence T7 Upgrade

[AlawnGnome]

Is there a T7 upgrade to Call of Defence?  It is level 52 so it should be upgraded at 66 right?  I can't find it on any list of upgrades.<div></div>

[Shizzirri]

<div></div><p>Pulled this from the sticky:</p><p><span>Group Defense Buff - HO-Icon: Arm </span></p><p><span>24 Call of Command - 38 Call of Protection - <font color="#ff0000">52 Call of Defense<font color="#ffffff"> -</font> <font color="#6633ff">66 Call of Armament</font></font></span></p>