*Baseline is using Blood as a healing medium and means of empowerment, as the vast, vast majority of characters in the verse go insane from using just a fraction of what the Hunter uses.
*Above that is the ability to absorb Madman's Knowledge and Great Ones' Wisdom with no issue, a single one of which drives normal people insane instantly. The Hunter can absorb dozens of these without any issue.
*Above that is resisting the Shaman Bone Blade, which mind manips those struck with it into being the Hunter's ally, including people who can use Blood without going insane.
*Above that is resisting the Beast Plague, which can degrade the mind of even people unaffected by the Shaman Bone Blade, and the Hunter resists the plague to the point of being able to actively utilize medicines, runes, and weapons that force their body to undergo the effects of Beasthood to the point of being able to fully transform into and out of the form of a Beast with no issue.
*Above that is resisting Frenzy, which in laymans terms is a form of attack by which the attacker forcibly bombards the opponent's mind with information incomprehensible to humans, such as information about the Great Ones, Eldritch Truth, or Cosmos and forces their mind to comprehend it, normally resulting in instant death to everyone besides the Hunter.
*Above that is resisting the influence of the Great Ones, who can directly impact the thoughts and actions of humans whenever they want but couldnt affect the Hunter.