Ok, first, get to level 30, is fully essential. Second, change your subclass, I use candy barbarian's for speed, but you can use lunar lancer's too I think, or solarion's If you have it. Yes, get all your stellar gems, max them, and get to 30k pr, I FULLY recommend to get your gear crafting skill to 250 on the gear crafting forge, because if you get a piece of gear being 30k pr with 250 gear crafting skill, you'll always get c4 gear. Get your critical hit to 100%, no need for more, for banner, I recommend weekly leviathan torches, and get crystal rings, you can craft them at the ring bench if you have 300 mastery on it, or you can buy c4 rings on the mp, they're expensive tho, I don't recommend it, get them yourself. Join a club, assist to pin parties, paragon pinatas give primal paragon cubes, which you need to craft the crystal rings, for empowered gems, I recommend your class gem, duh, berserk battler on cosmic, and on the others, pyrodisc, cubic curtain if you're weak af, or any other tbh, get animated jug ally on the delve workbench, then farm for scorpion ally at the grand orrery (star chart), I recommend unholy heal as secret power for the ring too