Not to dredge up a slightly old thread, but I dispatched Maligar today with ease and thought I'd share my approach.
I'm a level 53 bard and only have 1750 hps. Although I was perhaps foolish, I did not get any buffs for this attempt.
All I did was to approach Maligar and see that he was threatening to me. So, as mentioned in other posts, I clicked the DE mask. Now he was scowling. Doh! Oh well, that is neither here nor there. I charmed him and, instead of coming solo, his entire entourage was behind him--I thought they were after me, being scowling, but now that he was my pet, they were after him naturally. How convenient. I had him attack and kill the entourage. Adds dispatched.
Once they were dead I simply sang Purifying Rythms and turned my note into him. The doppleganger popped and I easily chant-kited him with two chants plus the resist song. He died easily and did not land a single spell on me. I wasn't even HT'd.
Anyway, I thought I'd share if only to re-affirm to apprehensive bards around my level that he is quite doable. :)
-Teryz
Povar