[Question] How can I get more HP?

My main is a Templar, with SOPA STA everything, aurum armor, Donor shield, and Legion 2H axe. I use legion because it gives more HP than a donor weapon for Templar. My couple is level 21, my pets give maximum HP, and I have donor fash blessed to STA. However, I am not Premium. My weapon and shield are pierced with Mazey cards, and my weapon has diamonds set to 150+ STA. For some reason, I total to only 1B hp. How can I raise my health?

use pet beads, power ups potion that adds STA, always have Seraph buffs, guild appliances that adds STA. use guitar cloak ([Red Guitar]
-All Stats +1000, Increased Hp +400%)^