Get to 51, get your cradle gear and you will do the cave trials in tka-rik fairly easily. I know this from my personal experience. ATM, I'm a level 51 ranged scout with just full cradle and I can clear 'Path of Trials' quest easy for my Soul Hardening quest a.k.a reinc quest.
Only issues I have is the Carnage trial.. the boss you spawn can't be kited and yeah, it's a DPS race. Also how some trials can be so luck based e.g. Get Curse of Time trial..then get all these long winded trials like Astral Poison or Survival of the Fittest.
Here's a link to the cave's mechanics. I skimmed through it all briefly once or so and now I'm finishing the trials fairly smoothly. viewtopic.php?f=52&t=50680
A few trials aren't listed as this guide is a little outdated. But the only other ones I've gone through not listed there is Ancient Weapons/Shields. Those are easy, just pick up the orbs and you get a new skill to use while in the cave. Nothing bad happens.