I'm sure an endgame warrior can make gold tier with regular daily play. Sometimes a boss drops a random energy point, and sometimes you can craft an energy kit with three energy essences. Even though I have had bad luck with other people leaving PUGs when the boss is Helena, I am at silver about 1/3rd of the way to gold.

Helena is nonsense. She does not reward commesurate with the effort it takes to beat her. Good luck running in PUGs because they often skip Helena. I always stay until last.

Skel, I have a rogue L24 so if you message me I will switch to her and help you with Helena or Ursoth.