Warrior of the Burning fist

Boil your own blood to shot fire fists

Level 3: Burning hands of ripping faith

Attack: [roll]1d20+10[/roll] Damage: [roll](if([roll:-1:critical], =0, d8, 2{d8}.expand()))[/roll] all creature's that are hit with more than 10 in religion will take an extra 1d10 force damage from all fiend creature's or beings from the nine hells. You can now cast Hands of Fireball as a cantrip

Onslaugter

Onslaugter: Every time you bring a creature to zero you can make another attack as long as it does force damage at level 10 you can spend one Ki point to strike an extra time  you can do this once per long rest

 

Level 6: Ki Demon Strike: spend two Ki points to lunge forward and launch four consecutive attacks each use your dex modifier to add to the damage at level 10 this upgrades to do summon a mage hand by using a bonus action and use that as an extra attack.

spend two Ki points to lunge forward and launch four consecutive attacks each use your dex modifier to add to the damage at level 10 this upgrades to do summon a mage hand by using a bonus action and use that as an extra attack.

Demons perfect counter

When you are targeted for a melee attack you can [roll]1d20[/roll] and deal Attack: [roll]1d20+5[/roll] Damage: [roll](if([roll:-1:critical], =0, 1, 2{1}.expand()))+5[/roll] fire damage and stagger the enemy

Masks Of the Fallen Soldiers

[roll]1d20[/roll] if it is 15+  you can learn a dead beings memories and then choose one spell that they knew and now can use it without using a spell slot but only while your wearing the mask it also turns to dust after a short or long rest and after you take more than 1d10 force damage.

Level 17: Demons final stand

After taking damage that leaves you at one HP you gain an extra action and an extra bonus action and you regain 1d10 HP and are immune to spells that don't do more than 1d10 damage.