Could someone give me a rough estimate of the important stats I'd need to make a fair contribution to this fight that would help clear?

I ask because my friend, in one of his fits of excitement because I'm apparently soooo close to getting my relic, decided that immediately after Garuda we'd go for Titan.

I'd heard of talk of a certain HP threshold needed to clear, and I seriously had doubts considering I'm a "fresh 50" SMN still in the process of gearing up. In hindsight, I probably should've geared body slots first so my ilvl wouldn't jump as high and we'd actually be forced to do this when I was actually ready. But alas, I was ilvl 60 with just the myth accessories meaning I was allowed to participate knowing I was undergeared.

So, while I'm hoping to postpone my quest and fend off my friend's idealistic viewpoint that we could've cleared it, what numbers should I be watching as I continue collecting myth and gearing up? VIT? HP? INT?

For what it's worth, in two tries I actually made progress in being able to semi-reliably dodge the fight's mechanics up through the heart phase, but Tumult spam at the end was what roadblocked us. Or rather, kept me from being able to contribute effectively.

Also, a more general question regarding being Raised: what's my priority as far as getting going again? One thing I tried that seemed to work was spending my next Aetherflow stacks on Energy Drain to get MP back to resummon and go to work.

That also reminds me... I've noticed another SMN bringing out Ifrit. Is Garuda ineffective for this fight?