Hi,

If a character becomes a vampire, as discussed in the monster manual, for PCs as vampires. 

https://www.dndbeyond.com/sources/mm/monsters-v#RegionalEffects

Is there a way to add that to your character sheet on DDB?

I plan on turning a Tiefling into a vampire spawn  

Thanks,

XD

No, there's isn't an official DDB widget that will allow you through a button or option in the character editor to assign forms of vampirism or lycanthropy or similar conditions that used to be called "templates" in older editions.  From what I've seen most folks get by with homebrew feats, many of which I imagine are public homebrew.

I don't think so, but changing the ability scores, resistances, and darkvision should be relatively easy to do manually on the sheet. The traits and actions will likely be harder, and might require a homebrew feat to do properly.

Don't forget vampires are an official player race. 'Official' as in formally published by WotC for D&D 5e, but not 'official' as in legal for D&D Organized Play.  There's two variants:

Zendikar Vampire: https://media.wizards.com/2016/downloads/magic/Plane Shift Zendikar.pdf

Ixalan Vampire: https://media.wizards.com/2018/downloads/magic/plane-shift_ixalan.pdf

but yeah, you'd have to homebrew it for DDB regardless.

I wouldn't say "official."  Planeshift content is _produced_ by WotC, but the reason why it's not allowed in organized play is it hasn't gone through the full D&D design process to include rigorous play testing.  They're basically well illustrated UA tied into specific MtG worlds.  I like them too, but they don't really speak to the OP's desire to apply the vampirism described in the MM on a D&D Beyond character sheet without homebrew intervention (because Planeshift, alas, isn't supported here ... honestly if they did do like a compilation of all planeshift for like $15, I'd probably be game, and would actually make the MtG toggle useful).

Quote from MidnightPlat >>

I wouldn't say "official."  Planeshift content is _produced_ by WotC, but the reason why it's not allowed in organized play is it hasn't gone through the full D&D design process to include rigorous play testing.  They're basically well illustrated UA tied into specific MtG worlds.  I like them too, but they don't really speak to the OP's desire to apply the vampirism described in the MM on a D&D Beyond character sheet without homebrew intervention

 that's why i said what i said.

Produced by WotC does not mean it is official. Planeshift articles were published by the Magic the Gathering team and should be treated as homebrew.

For it to be "official" material it needs to have been printed in material produced by the Dungeons and Dragons team.

That said, the guy on the MTG team that made them used to work on the D&D team and the races in the Planeshift articles are reasonably balanced.

Quote from Houligan >>

Produced by WotC does not mean it is official. Planeshift articles were published by the Magic the Gathering team and should be treated as homebrew.

For it to be "official" material it needs to have been printed in material produced by the Dungeons and Dragons team.

That said, the guy on the MTG team that made them used to work on the D&D team and the races in the Planeshift articles are reasonably balanced.

 that's why i said what i said.