Fizban's first impressions

[Unoriginal]

I think you read that as Tieflings being overwhelmingly powerful. What I meant was that the sheer amount of Tiefling options is overwhelming. With most races you have at most 4 options, with Tieflings you have what, 10?

Got it, I indeed thought you meant overwhelming as "too powerful", or maybe as "their thematic overwhelms the rest of the character.

1 for each archdevil (Asmodeus is the same as the base version, so I count them as one. 10 otherwise) + 4 (feral, winged, dark tongue and hellfire) variants you can mix and match on top. That's 13, unless you consider every possible combination as a separate race, in which case it's 72 (9 archdevil variants times 2 for normal/feral ASI times 4 for infernal legacy versions)

For what it's worth I'm pretty sure the game's default is that you can't mix and match the variants (at least not Feral or Winged with one of the archdevil bloodlines), 'cause they're variants for the base Tiefling only.