First your link to another post does not work for me (neither mobile nor on pc browser).
Then about this topic: I am really surprised no one mentioned the Dungeons and Dragons 4th Edition Vampire, because that was literally a (Super)race as a class.
- You still had another 4E race (the one you belonged to originally), so its not 100% pure
- It was a bit squishy on early levels, and some people did not like it because it was doing not thaat much damage for a striker, but overall its quite fine.
- It had tons of Flavour, it put a unique spin on the healing surge mechanic of 4E, where you had only 2 of them, but could drain them from enemies (or allies could spend you), and you could use them to empower attacks or more efficiently heal yourself. You had passive self healing. And both together makes this class feel quite different from other ones and does make it feel like its own thing
- It had some interesting slightly special/stronger multiclassing, which fits as a vampire. So you can still get power from your "original" class, but 4E style multiclassing which is not too extensive (like you can get 1 encounter power and maybe if you have enough feats also a daily power and an utility power from the original class, but you always need to give one up yourself). And you as a vampire got specifically strong multiclass feats to combine you vampire power with your original classes power. (Like martial vampire or primal vampire etc.) This for me works becauae you are still mainly a vampire ehich has some other powerw from previouw life. Not you are a fighter with some vampire powers.
- Then one important point which made it actually work is that we have A LOT of tropes about vampires, so this gave enough opportunity to actually implement the vampire fantasy. So in order for a "race as class" to work, we need to know (or assume from looking at it maybe?) a lot about the class to make it feel flavourfull.
So just here to show what the vampire all could do, and if there would not be a lot of vampire tropes this would just sound like an inconsistent heap of stuff:
- You need to drink blood, because yourself dont have enough
- you can drink blood from enemies and allies can donate it
- you have sunlight weakness
- you are really charismatic and this gives you more power
- You can spend blood to gain inhuman strength for a short time
- you can transform into a bat
- You have a squishy base nature but are still not easy to kill. With temp HP, regeneration and some tricky powers.
- So after a combat you can easily just regenerate as if nothing happened, if you got blood, thats really nice.
- You can later transform into air for some time
- you can dissolve into a swarm of bats to make you for a short time untargetable
- You have both physical hard hitting effects but also more mind effects:
- you can dominate an enemy
- You can lure enemies near you
- You can go full blood crazy mode where you cant heal anymore and just do pure damage
It also worked because it filled its own niche (even if some people dont like it), both from flavour (full powerfull Dracula) but also mechanically. (Dealing less damage, but being able to be more self sustained. You trade damage for being able to recover daily (healing) ressources. So even if a combat takes a bit longer, if enemies attack you, and you could drink blood, this is of no harm to the party).