So, all I need to finish my relic quest is to beat Titan. After watching a video of HM Titan, it looks like it isn't too bad as a tank. It definitely doesn't seem to require as much as Garuda does, with having to move around a lot or pick up adds. From what I can tell, you pretty much just need good gear to take the damage/make it easier on the healers. The only positioning I really saw was standing in the right places for the bombs, which seemed to just involve moving a few feet. And of course, popping cooldowns for Titan's big hit.

I am currently working on gearing up with darklight stuff before attempting it. Any tips for tanking Titan that I might have not seen in the video? The videos I watched mostly focused on how the dps and healers need to move around the arena.