see, now, (though, I know he has made appearance in the blades comics,...) I just don't think of him as being a good Blade villain, mainly because of his scientific based origin
blade kills vampires...
your normal vampire, the evil, undead, bloodsucking, scum,...
they should of been dead, anyway, so, the kills are somewhat justified
but, Morbius is a living vampire (who could possibly be cured) killing him isn't as just
He does have a certain sympathetic factor, (if you play up that angle) that does seem to be a reoccurring theme with spidey's villains
(not that I am saying want need another sympathetic villain, but, it makes him a better fit for spider-man, more, so, then with blade)