What do you mainly use this build for? Looks like a really good solo and pre-made small group build. Very self-sustaining! Do you run many expert dungeons and if so what's your experience like? I ask because my one concern with the build would be aggro management. I ran a "Senticar" build for quite some time that, like this build, was very defensively oriented. I had a lot of tools to increase my survivability during tough fights or when my healer got stunned/webed/crystalized... =P
A problem arose when update 1.5 hit, which changed aggro mechanics and skills, right around the time we progressed to Tier 2 experts. My aggro control with the Senticar wasn't up to the task of running dungeons like Darkening Deeps with a couple of trigger-happy marksman as DPS. Especially on the way up and down the spiral in the first section of the dungeon. Even worse was trying to run PUGs via the LFG tool. No one was patient enough to let me build up aggro before they began mashing buttons. A few wipes later and the kiddos would lose patience and begin the "you suck as a tank" tantrums followed by ditching and/or voting to kick me. LOL!
I have since switched to a "Cabicar" build that I developed. More tools for aggro management and more AOE DPS along with some DOTs to keep things stuck on me. Even a nice group pull with Maelstrom. I lost a few of my defensive capabilities however, such as Healer's Covenant, but in a group that's what a good healer is for. And between Purpose and Vile Power, mana isn't an issue even in extended engagements. Lastly, during times when my healer is temporarily incapacited, I still have Shield of the Ancestors, Just Defense (which will be even better in 1.6), and Reprieve. My overall DPS has almost doubled with the Cabicar v.s. the old Senticar build, which is important because clerics mainly hold aggro through AOE DPS and Mein of Leadership.
I'd me more than happy to share the build if anyone is interested in experimenting.