Here's my crack at porting Warhammer's Troll Slayer over to 5e. It's necessarily pretty niche, and is obviously constructed by cobbling together some features of the Berserker and the Hunter Ranger. Let me know if you think it's balanced properly:
Path of the Troll Slayer
Restriction: Dwarfs Only
Dwarfs who have been disgraced, crossed in love, or otherwise humiliated abandon traditional society and seek the sweet release of death. They hunt the most dangerous of monsters in the hopes of finding a glorious end. Most of them die fairly quickly, but those few who survive become members of the strange cult of Troll Slayers. They exist only to die, and by doing so redeem whatever disgrace they suffered in the past. They seek the fiercest foes, and Trolls are considered ideal because the Dwarfs' deaths are almost a certainty. Troll Slayers are instantly recognizable, with their spiky orange hair, outlandish tattoos, and gaudy jewellery. They spend a great deal of time boasting of their exploits and show off their many scars, and often indulge in bouts of overeating, drunkenness, and sleep deprivation.
Some Troll Slayers are just too ferocious to readily die. These rare few become known as Giant Slayers: obsessed Dwarfs who have found that not even Trolls could offer a sufficient enough challenge to give them the glorious ending they crave. They continue to seek out combat and a proper death wherever they go, many of them becoming morose drinkers when they aren't in the midst of battle. Giant Slayers continue to sport the spiky orange Slayer crest, but they tend to be covered with far more tattoos.
Favored Enemy
When you choose this path at third level, you focus your rage on giants. The six varieties of true giant are hill giants, stone giants, frost giants, fire giants, cloud giants, and storm giants. Besides these, creatures such as ogres and trolls are giants.
You have advantage on Wisdom (Survival) checks to track giants, as well as on Intelligence checks to recall information about them. Additionally, when you hit a creature with the giant type with a melee attack, you deal additional damage equal to one half your proficiency bonus (rounded down).
You also learn to speak Giant (or another language of your choice if you already know Giant).
Mindless Rage
Beginning at 6th level, you can’t be charmed or frightened while raging. If you are charmed or frightened when you enter your rage, the effect is suspended for the duration of the rage.
Colossus Slayer
Starting at 10th level, your tenacity can wear down the most potent foes. When you hit a creature with a weapon attack, the creature takes an extra 1d8 damage if it’s below its hit point maximum. You can deal this extra damage only once per turn.
Giant Killer
Beginning at 14th level, when a Large or larger creature within 5 feet of you hits or misses you with an attack, you can use your reaction to attack that creature immediately after its attack, provided that you can see the creature.
Here's my crack at porting Warhammer's Troll Slayer over to 5e. It's necessarily pretty niche, and is obviously constructed by cobbling together some features of the Berserker and the Hunter Ranger. Let me know if you think it's balanced properly:
Path of the Troll Slayer
Restriction: Dwarfs Only
Dwarfs who have been disgraced, crossed in love, or otherwise humiliated abandon traditional society and seek the sweet release of death. They hunt the most dangerous of monsters in the hopes of finding a glorious end. Most of them die fairly quickly, but those few who survive become members of the strange cult of Troll Slayers. They exist only to die, and by doing so redeem whatever disgrace they suffered in the past. They seek the fiercest foes, and Trolls are considered ideal because the Dwarfs' deaths are almost a certainty. Troll Slayers are instantly recognizable, with their spiky orange hair, outlandish tattoos, and gaudy jewellery. They spend a great deal of time boasting of their exploits and show off their many scars, and often indulge in bouts of overeating, drunkenness, and sleep deprivation.
Some Troll Slayers are just too ferocious to readily die. These rare few become known as Giant Slayers: obsessed Dwarfs who have found that not even Trolls could offer a sufficient enough challenge to give them the glorious ending they crave. They continue to seek out combat and a proper death wherever they go, many of them becoming morose drinkers when they aren't in the midst of battle. Giant Slayers continue to sport the spiky orange Slayer crest, but they tend to be covered with far more tattoos.
Favored Enemy
When you choose this path at third level, you focus your rage on giants. The six varieties of true giant are hill giants, stone giants, frost giants, fire giants, cloud giants, and storm giants. Besides these, creatures such as ogres and trolls are giants.
You have advantage on Wisdom (Survival) checks to track giants, as well as on Intelligence checks to recall information about them. Additionally, when you hit a creature with the giant type with a melee attack, you deal additional damage equal to one half your proficiency bonus (rounded down).
You also learn to speak Giant (or another language of your choice if you already know Giant).
Mindless Rage
Beginning at 6th level, you can’t be charmed or frightened while raging. If you are charmed or frightened when you enter your rage, the effect is suspended for the duration of the rage.
Colossus Slayer
Starting at 10th level, your tenacity can wear down the most potent foes. When you hit a creature with a weapon attack, the creature takes an extra 1d8 damage if it’s below its hit point maximum. You can deal this extra damage only once per turn.
Giant Killer
Beginning at 14th level, when a Large or larger creature within 5 feet of you hits or misses you with an attack, you can use your reaction to attack that creature immediately after its attack, provided that you can see the creature.
I would love to hear more about this!