Way of the massacre's grip

You have been a disciple of the massacre wurm and were born into its cult alongside powerful warlocks and sorcerers who worshiped the great monster that is the massacre wurm. You stood out due to your physical prowess and was therefore chosen to become a monk following the tutelage of the great wurm.

Spellcasters Bane

Starting at third level whenever you battle a creature or enemy that can cast spells you have advantage on attacks against them and they have disadvantage on attacks targeting you. additionally, you may use ki abilities without ki points being expended so long as you are 100ft away from an enemy spellcaster.

Fist of the wurm

Starting at sixth level whenever you would use one or more ki points for an attack you will crit on a 18 19 or 20 if you would hit with a critical hit you may instead of doubling your damage instead you may channel the wurm to invade your opponent's mind. They must make a dc wisdom save equal to your monk levels on a failure they become charmed by you for 5 minutes and take Xd12 psychic damage (X equals your monk levels) if trying to act counter to your commands.

Braisen fists

At 17th level you gain the ability to sense the thoughts and intentions of all sentient beings within 30ft of you, if an enemy is affected by this ability you may expend a ki point and a bonus action to force the creature to make a dc 18 wisdom saving throw or be dominated by you where they must obey all commands you make however if a suicidal command would be issued the effect ends but if they act contrary to your command they take 20d10 psychic damage.

Massacre

Whenever you enter combat, you may choose to massacre as an action once every long rest. When you massacre you will cause a massive tremor as you fight, creating 100ft of difficult terrain around you when you would attack you may expend any amount of ki points to deal xd10 plus Z bludgeoning damage ignoring immunities treating them as resistance (X equals half your monk levels, Z = double the ki points expended).