When you get voted out, you pass on an infectious disease! Assassin tries to infect the king to win.
Guards are aware of identity of the king
Day 1 vote is normal- player voted then decides to disease another player. They then keep passing the disease until the assassin has the disease. If the assassin diseases the king, they win!
Assassin can win even if they die
If King gets diseased town loses.
https://wiki.mafiascum.net/index.php?title=Contagion_in_the_Palace
6: Assassin, King, 4x Guard