Nosferatu is a caste of vampires, or rather more of a clan. It is the oldest and strongest of all currently known clans. Later, it was ported into many games.
By the way, a strange "dragon" tendency can be seen in the alt upgrades for dragons.
For example:
Necropolis. The Bone Dragon costs 2400 gold. The alternative upgrade (they call it terrible, I think) costs 1900 gold.:)
The same goes for Sylvan.
The Green Dragon costs 3500 gold, the new rainbow one is 3400.
And in Dungeon it's almost the same.
Twilight and red cost the same.
Moreover, the alternative upgrade has higher stats, naturally.:)
What does that even mean then?
A freebie?:) Or just a budget version. =)