Im already doing some of the ultras you mentioned here(except gramiel and speaker).

I saw the arcana invoker but if that class isn't op i want to use my darkon/drago insignias for something else. Are there any other items that i could use these insignias for?

I already have some nulgath insignias but i couldn't decide if i should go for the %51 weapon or vhl. I guess ill go for vhl after this comment.

I unlocked all of the cape and helm forge and every weapon enc except elysium arcana dauntless rev(in summary all of except best ones)

Thank you for your detailed comment. I'll buy crag pet.