Personally, I'm horrible at buff and debuff management. Hell, the only way I can keep decent uptime on Inquisition on my Ret Paladin is by relying heavily on CLCinfo.
In this case, couldn't it be better to just take Incanter's Ward and never use it? I saw a thread on here a few months ago, which said exactly that, but I don't know if that's still the case.
edit:http://www.mmo-champion.com/threads/...-Ward-is-Good! is the thread I mentioned above.