JohnSnow
Hero
I disagree with the MMO “Tank, DPS, Healing, Magic” role thing because it literally comes from D&D’s “Core 4.”
Fundamentally, other than healing, there’s three things you can do in combat (I’ll tackle healing in a minute).
1. You can be a frontline melee combatant.
2. You can be a skirmisher, either attacking from range, or acting as a highly mobile melee combatant.(*)
3. You can cast spells.
Now, spellcasters can function in a LOT of different ways, including targeted attacks, area attacks, manipulating the battlefield, or weakening adversaries. Which makes their niche complicated.
Healing isn’t a particularly interesting thing to do in combat. If a low-level potion can replace your niche, it’s not a very good niche.
(*) A reasonable argument could be made that a ranged combatant and a skirmishing melee combatant are two very different roles. I tend not to think so, because part of what happens in a normal fight is that most archers have to use weapons other than their bows at times.
I’d draw the Aragorn-Legolas comparison. While Gimli is a frontline fighter, wading into combat with his axes and hacking enemies down, Aragorn generally prefers to fight as more of a skirmisher, even though he does it from melee. He dashes in, makes his kills, and moves on to the next target. While he doesn’t even carry a bow in the books, he has one in the movies and it very much suits his preferred combat style.
Legolas, by contrast, is a mostly a ranged skirmisher, shooting his bow from a distance, and fighting in melee (using a single long knife, in the books, and paired ones, in the films) only when necessary.
Different fighting styles can be as much a combat niche as DPS, Tank, Healer and Mage.
(As an aside, I would note that Clerics got the things needed to be a second-string fighter in early D&D, and “extra fighters” was almost always what was suggested once the primary roles were covered).
Fundamentally, other than healing, there’s three things you can do in combat (I’ll tackle healing in a minute).
1. You can be a frontline melee combatant.
2. You can be a skirmisher, either attacking from range, or acting as a highly mobile melee combatant.(*)
3. You can cast spells.
Now, spellcasters can function in a LOT of different ways, including targeted attacks, area attacks, manipulating the battlefield, or weakening adversaries. Which makes their niche complicated.
Healing isn’t a particularly interesting thing to do in combat. If a low-level potion can replace your niche, it’s not a very good niche.
(*) A reasonable argument could be made that a ranged combatant and a skirmishing melee combatant are two very different roles. I tend not to think so, because part of what happens in a normal fight is that most archers have to use weapons other than their bows at times.
I’d draw the Aragorn-Legolas comparison. While Gimli is a frontline fighter, wading into combat with his axes and hacking enemies down, Aragorn generally prefers to fight as more of a skirmisher, even though he does it from melee. He dashes in, makes his kills, and moves on to the next target. While he doesn’t even carry a bow in the books, he has one in the movies and it very much suits his preferred combat style.
Legolas, by contrast, is a mostly a ranged skirmisher, shooting his bow from a distance, and fighting in melee (using a single long knife, in the books, and paired ones, in the films) only when necessary.
Different fighting styles can be as much a combat niche as DPS, Tank, Healer and Mage.
(As an aside, I would note that Clerics got the things needed to be a second-string fighter in early D&D, and “extra fighters” was almost always what was suggested once the primary roles were covered).

