Here is a suggestion for a non-conversion based faction.
Starting classes: Confusing Darkness + Deadly Darkness + 2 random classes, 1 maximum per class.
Hard Counter: The Torch Bearer
The Torch Bearer
Blue Dragon Investigative
Night Ability 1:Two Torches: Detect if your target is a member of the Darkness.(1 use)
Night Ability 2:Torch:Detect if your target is the lowest priority, and not the highest priority member, of The Darkness. Detect if your target is a member of the Darkness if you already used this ability on them once.
Deadly Darkness
Darkness Killer
Passive 1:Priority 2: If you are the lowest priority member of The Darkness alive you are immune to death until the beginning of Night 4,immune to bleeding, and investigate as Blue Dragon until the beginning of Night 2.
Day Ability 1:Cut: Bleed a player, killing them in two nights. Unlimited Uses.
Day Ability 2: Poisoning the Blade: The attack with The Dark Dagger tonight will kill by poison this night as well, bypassing Attack immunities.(1 use)
Night Ability 1:The Dark Dagger: Attack someone, unless someone with a lower priority number attacks.(Unlimited Uses)
Confusing Darkness
Darkness Offensive
Passive 1:Priority 3: If you are the lowest priority member of The Darkness alive you are immune to death until the beginning of Night 4,immune to bleeding, and investigate as Blue Dragon until the beginning of Night 2.
Day Ability 1: Interfere: Your target is immune to imprisonment by the Prince today(and tonight). Can target yourself.(Unlimited Uses)
Night Ability 1:The Dark Dagger: Attack someone, unless someone with a lower priority number attacks(Unlimited Uses)
Night Ability 2:What Happened?:No one gets feedback tonight, unless they are killed(1 use)
Refreshing Darkness
Darkness Support
Passive 1:Priority 4: If you are the lowest priority member of The Darkness alive you are immune to death until the beginning of Night 4,immune to bleeding, and investigate as Blue Dragon until the beginning of Night 2.
Passive 2:Hidden:Immune against Bleeding.
Day Ability 1:Spread:Give someone else Hidden permanently(1 use).
Day Ability 2:Quick Rest:Your target gets Priority 1 for the next night, and their attacks cannot be prevented. Can target yourself.(1 use)
Night Ability 1:The Dark Dagger: Attack someone, unless someone with a lower priority number attacks(Unlimited uses)
Night Ability 2:Safe Rest:Heal someone. Heals Poison and Bleeding. Your first target that belongs to The Darkness gains one usage of their limited abilities.(Unlimited Uses)
Dividing Darkness
Darkness Social
Passive 1:Priority 6: If you are the lowest priority member of The Darkness alive you are immune to death until the beginning of Night 4,immune to bleeding, and investigate as Blue Dragon until the beginning of Night 2.
Day Ability 1:Trollbox:Make a player say something. They won’t see it.(Unlimited Uses)
Day Ability 2:Dark Control:Force your target to vote your second target. They cannot change votes, nor speak for the rest of the day(1 use)
Night Ability 1:The Dark Dagger: Attack someone, unless someone with a lower priority number attacks(Unlimited uses)
Night Ability 2:Sow Discord:Disable all abilites that affect votes, except Chill, tomorrow(2 uses)
Creeping Darkness
Darkness Investigative
Passive 1:Priority 5: If you are the lowest priority member of The Darkness alive you are immune to death until the beginning of Night 4,immune to bleeding, and investigate as Blue Dragon until the beginning of Night 2.
Day Ability 1:How? Learn which ability/abilities killed your target (2 uses).
Night Ability 1:The Dark Dagger: Attack someone, unless someone with a lower priority number attacks(Unlimited uses)
Night Ability 2:Silent Look:Learn who visited your target, whom your target visited, and which ability your target used at night(Unlimited Uses)
The Dark Core
Darkness Special
Passive 1:Release:If there are less than 3 players alive, including yourself, your team wins.
Passive 2:Priority 0: If you are the lowest priority member of The Darkness alive you are immune to death until the beginning of Night 4,immune to bleeding, and investigate as Blue Dragon until the beginning of Night 2.
Day Ability 1:The Dark Hand(1) Use the first Day Ability of your dead target on your second target. No effect on an invalid target. Can target yourself. Unlimited Uses.
Day Ability 2:The Dark Hand(2) Use the second Day Ability of your dead target on your second target. No effect on an invalid target. Can target yourself. Unlimited Uses.
Night Ability 1:The Dark Foot(1):Use the first Night Ability of your dead target on your second target. No effect on killers outside your faction, or on an invalid target. Can target yourself. Unlimited Uses.
Night Ability 2:The Dark Foot(2):Use the second Night Ability of your dead target on your second target. No effect on killers outside your faction, or on an invalid target. Can target yourself. Unlimited Uses.
**The Dark King can spawn, but they have no night abilities to make up for the numbers advantage.