But whats your opinion? 
HLT has never been a
healthy stat for the overlord. Bloody Roar consummes your HPs every second by a percentage of your max HP, and it is pretty fair to say that Bloody Roar is what makes the overlord good enough to be viable in PvE (but more accurately, in Elga runs). So going with a lot of HLT would make it such a pain to recover from potions (that can already sustain a player nearly forever with the strongest ones) and you don't need that much HP for Elga.
For my case as an exemple, I usually do Elga runs with a +15 Heirloom Bone Dragon set, and it is just enough to do the Elga run without dying, or eventually once.
Dude should be aiming for AGI, but it doesn't take much untill you reach the C.Rate cap so he might eventually go with ALL STAT cards. Although it gives a bit of health, if one is too worried about not being able to hold the HP loss from Elga's damage and Bloody Roar at the same time they might consider taking some instant HP recovery items.
Well not for every parts of course. You can get Max HP cards for the head, shoulders, hands and foot as they give an efficient ammount of C.Rate and also some C.Damage for the backpack, the belt and the brecelet because they probably won't give you too much HP but you can always replace them with AS if you already reached max C.Damage.
Then you have the go to cards, which are the absolute ATK ones. (You can also use absolute DEF for your top/bottom instead of ALL STAT but I haven't test if they actually do make a difference)
You can equip 2 absolute ATK and 2 absolute DEF which is great, especially if you're not willing to spend some time for Solar Rings.
DO NOT get a pet with HLT because it will synergizes with the MAX HP bonuses and give a heavy downside to your Bloody Roar.
C.Damage instead of HLT is good. Then 2nd option is ATK Speed and the 3rd one is skippable (but it's okay if you have HP)
Now for the rest (that I am too lazy to give explaination) :
- Belt : Aram
- Rings : Anything that gives ATK, or MS as set pieces combo effect if not Solar
- Earrings : Kryos / Solar / Elemental
- IM Gloves : Unity
The rest is just however you want to gear yourself. You'll most likely go woth more Unity pieces for AS. If you use ALL STAT cards you'll probably have already 40 % Final C.Rate at this point. Keep in mind that Home buffs can give 3 % Final C.Rate for a hour or two so you're really not far from those 40 %.
I probably missed some stuff, been a while since I was full of interest into this game so I'm not consistent anymore with the time I spend online. I would rather log into the game and speak directly with you to give you advices on a weekend if you're willing to.