Sages are made from correctly admisnistered infection. when done wrong it turns people into infected monsters.

The waters that surround Exilli's shoers are dark and deeply calm, if you listen while under the water you can hear the whispers of the abyss. Exilis resides just on the edge of the abyss. swim too deep and you will be lost forever.

Sight Rot
This painful infection causes bleeding from the eyes and eventually blinds the victim.
A beast or humanoid that drinks water tainted by sight rot must succeed on a DC 15 Constitution saving throw or become infected. One day after infection, the creature’s vision starts to become blurry. The creature takes a −1 penalty to Attack rolls and Ability Checks that rely on sight. At the end of each Long Rest after the symptoms appear, the penalty worsens by 1. When it reaches −5, the victim is Blinded until its sight is restored by magic such as Lesser Restoration or heal.
Sight rot can be cured using a rare flower called Eyebright, which grows in some swamps. Given an hour, a character who has proficiency with an Herbalism kit can turn the flower into one dose of ointment. Applied to the eyes before a Long Rest, one dose of it prevents the disease from worsening after that rest. After three doses, the ointment cures the disease entirely.

Torrent Rot
A dangerous infection caused by drowned creatures. when infection starts teh creature will feel heavy and water logged to start off, as hours pass thier movement speed will be reduced by 10 feet and thier body will be bloated, after 24 hours wounds will start openeing up on the body and water will start leaking out uncontrollably, you regain your moment but now you will take an extra 5 damage from all sources and weild any weapon at -2 to hit, can be cured with heal or lesser restoration, Dry root can be mixed into any common potion for instant cure as well. this sickness is contagous people coming into contact will need to make a DC14 con save or become infected.

Entity's Presence
A creature can suffer this status if the come into direct sight or contact with an outer entity and it takes notice of them. the creature suffers disadvantage on all checks, half moment speed and is frightened of creatures it dosent know for the next 12 hours.

Livion Virus
A terrible horrible virus that is only curable if caught early enough
Upon infection the target has 1 D12 days +3 to get rid of it or become part of the garden
in the first few days you are unable to eat and when you do you throw it back up in a black spew that wriggles and writhes on its own, you will starve but still be unable to eat. disadvantage on Con saves.
Futher days later you are unable to contrl your body at times. before your turn roll a D20, on an Odd number the DM decides your turn.
in your last days your skin will start to fall off reviling a red fleshy exoskeleton as you slowly start to morph into a livion hornet.

Only a few places can cure the virus, proffessor Stem, Tier 2 sages, and some beholders.

Insight Mechanics
Characters have thier total inteligence equal thier Insight score, if proficent in Insight they get a permanent bonus to this score equal too the normal bonus.
-1: Level 0 Your character instantly gets infected with the livion virus
-7 or less: Level 1 Your character cannot comprehend any celestial being but they will still interact with you they are completely invisible to you.. you are very subsetible to the livion virus but immuned to any pcy damage from celestial beings.
-11 or less: Level 2 your charcater has difficulty wrapping thier heed around the celestial beings. you gain resistance to pcy damage from celestial beings but weakness to Virus and dessies take an extra damage from attackes from Livion creatures
-14 or less: Level 3 you are normal, you can see the celistial beings and are normally resistant to the virus.
-22 or less: Level 4 you are enlightened, you have a weakness to the pcy damage from celistial beings and have disadvantage against frightened or stun checks against them, you are resistant to the livion virus and immune to most other sickness. you start to see things that others can't
-29 or less: level 5 you are truly acceded. you understand what the celistials are saying and can see them all. you are immuned to all sickness and gain advantage with all spell attacks and insight checks but will fail all wisdom checks you make.
30: Level infinity you become an Orphan

Temporary Insight bonus Points:
Certain events can add temporary insight points, these points go away after a few hours.
Seeing a lots get converted +2
Slaying a lost or drowned creature +1
Seeing a drowned Beholder +4
Seeing an Orphan +4

Permanent Insight bonus:
Certiant events can permanent increase your intelligence score.
Slaying an orphan +1
Seeing an outer entity +2
Entering the town of Paract +3
Entering the city of Seiko +1
Slaying one of the turned crew members +1
first entering the land of exilis.

Decrease Insight bonus:
Orphans and Drowned beholders have the ability to drain your int score with special attacks.