Soul Master

Soul Masters are very powerful with souls.

Hardened Soul

Gain extra Soul HP equal to your level.

Soul Spells

Lvl 3: Soul Heal, False Life

Lvl 5: Speak with the Dead, Damage Soul, Summon Grim

Lvl 7: Drain Soul, Phantasmal Killer

Soul Travel

As a bonus action, enter the soul plane until the start of your next turn. While in the soul plane, you are invisible and cannot be interacted with by creatures or interact with creatures. 

Harvest Soul

Whenever a creature within 40ft of you dies, you can spend a reaction to harvest its soul and heal 1d6 Soul HP and 1d8 HP.

Soul Master

Every time you deal non-soul damage, deal extra soul damage equal to half the damage dealt. Whenever you use Soul Travel or cast one of your Soul Spells, heal 1d8+int mod Soul HP.