Okay! I'm planning to do a pinkblood (who goes hemoanon out of fear of culling), a lowblooded seadweller (who identifies as brownblood, but is biologically violet), a "blackblood" (who also goes hemoanon), a whiteblood (biologically red, but identifies as white), and a "canon relationship" (read: stalks eridan after meeting him during a FLARP session and believes he loves her), among others who I'll send in at some point.
I wasn't able to think of anything for canon relationship, and I do have a single working blackblood idea BUT it's very context sensitive and probably would not work here. It could possibly work if they turned blackblood later; a latent disease causes their blood to congeal and turn black when exposed to oxygen or something. It would definitely explain why they weren't culled as a wriggler.Pinkblood would actually be hilarious if the troll actually wasn't pinkblooded but because of trutabiopia colourblindness they thought they were. Oranges and reds can show up as a pink colour with this type of colourblindness, so they could be maroon or brownblooded, or if they were yellowblooded they'd have a cotton candy-like pink.I actually don't feel the need to think up something for the whiteblood or the lowblooded seadweller because you've stated them as transblooded, which I actually haven't seen done in fandom before. And I mean, I've looked at an unbelievable amount of fantrolls.Another idea for a "bad" fantroll trait is dual-blooded, or gradient blooded. I've seen trolls with x blood with smatterings of y, or other combinations of two blood colours existing simultaneously that don't make sense. Can't think of anything for that currently.- GG