Soul Furnace

Deep lore: The Maw is where you get your powers from, it chooses random people to be Soul Furnaces, and their job from then on is to tether people, kill them, thus feeding them to The Maw.

what is The Maw you may ask? The Maw is a deep hole with souls constantly burning at the bottom and their screams power their abilities 

Soul Tether

Starting at 3rd level you are able to spend an action to target an enemy that you can see within 10ft, that enemy must make a strength saving throw or else their soul will be tethered, tethered enemies have their movement reduced by 10ft and at the start of their turn they take 1d6 necrotic damage. the tether lasts for one minute and only 1 enemy can be tethered at a time and to switch targets you need to spend another use . The tethered enemy can spend an action to attempt to untether themselves, to untether themselves they must succeed a strength saving throw against 8 + proficiency + constitution modifier, if the enemy makes it 30ft away from you the tether is instantly broken. if you are hit by an untethered enemy you must make a concentration check to keep the tether up

you can use this feature an amount of times equal to your proficiency bonus + 2, and all expended uses  are regained after a short rest.

as an action you can pull a tethered enemy 5ft towards you

Death Do Us Part

Starting at 7th level,  you are now able to...

-Pull a tethered enemy 10ft towards you instead of 5ft

-When a tether has been broken your next attack deals extra 1d4 necrotic damage 

Flames Of The Maw

starting at 10th level, when you are hit by an enemy as a reaction you may move them 15ft in a direction of your choice with chains from The Maw and then are tethered if they are not already.

You may use this an amount equal to your proficiency bonus and all expended uses are regained after a long rest.

Soul Mastery

Starting at 15th level, you can...

-Tether up to 3 enemies

-Soul Tether's range has been increased to 30ft and its max range before the tether breaks has been increased to 60ft

-Pull distance increased to 15ft

-When a tether is broken you deal an extra 1d8 necrotic damage instead of 1d4

Open Casket

Starting at 18th level, you may summon a coffin 5ft away from you that pulls all tethered enemies 90 hitpoints or fewer towards it then it disappears, use this once every 1d4 long rests

if its a size huge or higher it can be only moved 20ft