[@Lunarlord34] Here are some ideas if you're going for a demon hunter or other anti-demon fighter. There's always the holy angle, which includes things like banish, repel (force out or away), repudiate (attack with a divine voice, perhaps conducting rituals) seal (blocking foes' abilities or trapping them, potentially inside stuff), ward (protective barriers or marks that can defend against wounds or statuses), boundary (creating holy lines that cannot be crossed, and can be used to cut unholy things), and so forth. Controlling the battlefield and keeping dark forces at bay with defensive miracles. There's also blessed weaponry. This can all fulfill the stereotypical paladin aesthetic or go for a more renegade priest style. Someone also doesn't need to be of a divine bent to use divine weapons. Why not buy a vial of holy water off some monk and coat your sword with it like poison when going to fight demons?

Alternatively, there's the idea of a monster that turned against its kind, or of someone who become monstrous to fight the monsters. In that case, empowering curses, berserker abilities (growing stronger from wounds and such), or skills that lend themselves toward subterfuge (disguise, magic bombs, et cetera) could fit the bill.

You could also create classes stemming from in-game lore that you make up. Maybe there's an extreme sect in the setting that arms its church hunters with brutal [url=https://bloodborne.wiki.fextralife.com/file/Bloodborne/Logarius'_Wheel_Cainhurst_Armor.jpg?v=1499847048206]weapons[/url] or trains merciless [url=https://darksouls3.wiki.fextralife.com/file/Dark-Souls-3/abyss-watchers-dks3.jpg]inquisitors[/url] to seek out and slaughter evil wherever it may lurk with ruthlessly weaponized versions of more benign monastic tools and iconography. In the game Dante's Inferno, the main character (a sort of paladin) literally blasted out radiant crosses three at a time as projectiles. There's another game called Blasphemous with some imagery that might interest you.

Anyway, that's all just spitballing. Maybe it was helpful though?