I think it would be nice to have a Birkin that mutates as the game goes on.

It could look like:

William Birkin (mutation A)
60 health
60 damage
6 decorations

If William Birkin is not defeated shuffle, William Birkin (mutation B) into the mansion.

William Birkin (mutation B)
70 health
60 damage
7 decorations

If William Birkin is not defeated, shuffle William Birkin (mutation C) into the mansion.

William Birkin (mutation C)
80 health
70 damage
8 decorations

If William Birkin is not defeated, shuffle William Birkin (mutation D) into the mansion.

William Birkin (mutation D)
90 health
70 damage
8 decorations

If William Birkin is not defeated, shuffle William Birkin (mutation D) into the mansion.


What do you think?